id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
Mmdn_HTTP/HTTP_response_status_43_3.txt | cs/Web/HTTP/Headers/RTT) Experimental
84. [ ` Save-Data ` ](/en-US/docs/Web/HTTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-standard
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH-Prefers... | |
Mmdn_HTTP/Header_Field_Definitions_12_0.txt | ### 14.9.3 Modifications of the Basic Expiration Mechanism
The expiration time of an entity MAY be specified by the origin server using
the Expires header (see section 14.21). Alternatively, it MAY be specified
using the max-age directive in a response. When the max-age cache-control
directive is present in a cached... | |
Mmdn_HTTP/HTTP_response_status_16_4.txt | ` ](/en-US/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefe... | |
Mmdn_HTTP/HTTP_headers_21_7.txt | /Web/HTTP/Headers/Permissions-Policy/execution-while-not-rendered) Experimental
12. [ Permissions-Policy: execution-while-out-of-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-out-of-viewport) Experimental
13. [ Permissions-Policy: fullscreen ](/en-US/docs/Web/HTTP/Headers/Permissi... | |
Mmdn_HTTP/HTTP_response_status_35_5.txt | 7)
40. [ ` 418 I'm a teapot ` ](/en-US/docs/Web/HTTP/Status/418)
41. [ ` 421 Misdirected Request ` ](/en-US/docs/Web/HTTP/Status/421)
42. [ ` 422 Unprocessable Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-U... | |
Mmdn_HTTP/HTTP_headers_3_3.txt | 2. [ ` Retry-After ` ](/en-US/docs/Web/HTTP/Headers/Retry-After)
83. [ ` RTT ` ](/en-US/docs/Web/HTTP/Headers/RTT) Experimental
84. [ ` Save-Data ` ](/en-US/docs/Web/HTTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-sta... | |
Mmdn_HTTP/Permissions_Policy_directives_7_5.txt | ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-US/docs/Web/HTTP/Status/424)
45. [ ` 425 Too Early ` ](/en-US/docs/Web/HTTP/Status/425)
46. [ ` 426 Upgrade Required ` ](/en-US/docs/Web/HTTP/Status/426)
47. [ ` 428 Precondition Required ` ](/en-US/docs/Web/HTTP/Status/428)
48... | |
Mmdn_HTTP/Permissions_Policy_directives_28_5.txt | n-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-US/docs/Web/HTTP/Status/424)
45. [ ` 425 Too Early ` ](/en-US/docs/Web/HTTP/Status/425)
46. [ ` 426 Upgrade Required ` ](/en-US/docs/Web/HTTP/Status/426)
47. [ ` 428 Precondition Required ` ](/en-US/docs/Web/HTTP/Status/428)
48. [ ... | |
Mmdn_HTTP/HTTP_response_status_59_0.txt | * Skip to main content
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Mmdn_HTTP/CSP_directives_2_4.txt | ` ](/en-US/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefe... | |
Mmdn_HTTP/HTTP_response_status_47_7.txt | rimental
11. [ Permissions-Policy: execution-while-not-rendered ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-not-rendered) Experimental
12. [ Permissions-Policy: execution-while-out-of-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-out-of-viewport) Experimental... | |
Mmdn_HTTP/CSP_directives_17_4.txt | 132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control) Non-standard
133. [ ` X-Forwarded-For ` ](/en-US/docs/Web/HTTP/Headers/X-Forwarded-For) Non-standard
134. [ ` X-Forwarded-Host ` ](/en-US/docs/Web/HTTP/Headers/X-Forwarded-Host) Non-standard
135. [ ` X-Forwarded-P... | |
Mmdn_HTTP/Permissions_Policy_directives_1_0.txt | * Skip to main content
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Mmdn_HTTP/HTTP_request_methods_1_0.txt | * Skip to main content
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Mmdn_HTTP/HTTP_response_status_45_1.txt | /en-US/docs/Web/HTTP/Connection_management_in_HTTP_1.x)
7. [ Protocol upgrade mechanism ](/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism)
5. HTTP security
1. [ Content Security Policy (CSP) ](/en-US/docs/Web/HTTP/CSP)
2. [ HTTP Strict Transport Security (HSTS) ](/en-US/docs/Web/HTTP/Headers/Strict-Trans... | |
Mmdn_HTTP/HTTP_headers_7_0.txt | * Skip to main content
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Mmdn_HTTP/CSP_directives_27_1.txt | (/en-US/docs/Web/HTTP/Session)
6. [ Connection management in HTTP/1.x ](/en-US/docs/Web/HTTP/Connection_management_in_HTTP_1.x)
7. [ Protocol upgrade mechanism ](/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism)
5. HTTP security
1. [ Content Security Policy (CSP) ](/en-US/docs/Web/HTTP/CSP)
2. [ HTTP ... | |
Mmdn_HTTP/HTTP_response_status_19_6.txt | ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src)
27. [ ` CSP: style-src-attr ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-attr)
28. [ ` CSP: style-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem)
29. [ ` CSP: trusted-... | |
Mmdn_HTTP/CSP_directives_3_0.txt | * Skip to main content
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Mmdn_HTTP/Header_Field_Definitions_7_0.txt | ### 14.7 Allow
The Allow entity-header field lists the set of methods supported
by the resource identified by the Request-URI. The purpose of this
field is strictly to inform the recipient of valid methods
associated with the resource. An Allow header field MUST b... | |
Mmdn_HTTP/HTTP_headers_12_0.txt | * Skip to main content
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Mmdn_HTTP/HTTP_response_status_7_7.txt | mental
10. [ Permissions-Policy: encrypted-media ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media) Experimental
11. [ Permissions-Policy: execution-while-not-rendered ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-not-rendered) Experimental
12. [ Permissions-Policy: ex... | |
Mmdn_HTTP/CSP_directives_26_4.txt | S/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control) Non-standard
133. [ ` X-Forwarded-For ` ](/en-US/docs/Web/HTTP/Headers/X-Forwarded-For)... | |
Mmdn_HTTP/HTTP_response_status_52_2.txt | P/Headers/Content-Location)
33. [ ` Content-Range ` ](/en-US/docs/Web/HTTP/Headers/Content-Range)
34. [ ` Content-Security-Policy ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy)
35. [ ` Content-Security-Policy-Report-Only ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only)
36... | |
Mmdn_HTTP/CSP_directives_13_5.txt | [ ` 418 I'm a teapot ` ](/en-US/docs/Web/HTTP/Status/418)
41. [ ` 421 Misdirected Request ` ](/en-US/docs/Web/HTTP/Status/421)
42. [ ` 422 Unprocessable Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-US/docs/Web... | |
Mmdn_HTTP/Header_Field_Definitions_14_0.txt | ### 14.9.5 No-Transform Directive
no-transform
Implementors of intermediate caches (proxies) have found it useful to convert the media type of certain entity bodies. A non- transparent proxy might, for example, convert between image formats in order to save cache space or to reduce the amount of traffic on a s... | |
Mmdn_HTTP/HTTP_response_status_25_2.txt | tion ` ](/en-US/docs/Web/HTTP/Headers/Content-Location)
33. [ ` Content-Range ` ](/en-US/docs/Web/HTTP/Headers/Content-Range)
34. [ ` Content-Security-Policy ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy)
35. [ ` Content-Security-Policy-Report-Only ` ](/en-US/docs/Web/HTTP/Headers/Content-Securit... | |
Mmdn_HTTP/HTTP_response_status_23_0.txt | * Skip to main content
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Mmdn_HTTP/HTTP_response_status_20_4.txt | WW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control) Non-standard
133. [ ` X-Forwarded-For ` ](/en-US/docs/Web/HTTP... | |
Mmdn_HTTP/HTTP_response_status_11_6.txt | ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr)
25. [ ` CSP: script-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem)
26. [ ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src)
27. [ ` CSP: style-src-attr ` ](/en-US/do... | |
Mmdn_HTTP/CSP_directives_14_10.txt |
]: Deprecated. Not for use in new websites.
*[
Experimental
]: Experimental. Expect behavior to change in the future.
| |
Mmdn_HTTP/HTTP_response_status_2_2.txt | ocs/Web/HTTP/Headers/Content-Location)
33. [ ` Content-Range ` ](/en-US/docs/Web/HTTP/Headers/Content-Range)
34. [ ` Content-Security-Policy ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy)
35. [ ` Content-Security-Policy-Report-Only ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-O... | |
Mmdn_HTTP/Permissions_Policy_directives_29_3.txt | d
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme) Experimental
87. [ ` Sec-CH-Prefers-Reduced-Motion ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Motion) Experimental
88. [ ` Sec-CH-Prefers-Reduced-Transparency ` ](/en-US/docs/Web/HTTP/Headers/... | |
Mmdn_HTTP/HTTP_response_status_43_4.txt | ` Width ` ](/en-US/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-... | |
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Mmdn_HTTP/HTTP_response_status_24_0.txt | * Skip to main content
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Mmdn_HTTP/Permissions_Policy_directives_30_5.txt | 42. [ ` 422 Unprocessable Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-US/docs/Web/HTTP/Status/424)
45. [ ` 425 Too Early ` ](/en-US/docs/Web/HTTP/Status/425)
46. [ ` 426 Upgrade Required ` ](/en-US/docs/We... | |
Mmdn_HTTP/HTTP_response_status_26_1.txt | management_in_HTTP_1.x)
7. [ Protocol upgrade mechanism ](/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism)
5. HTTP security
1. [ Content Security Policy (CSP) ](/en-US/docs/Web/HTTP/CSP)
2. [ HTTP Strict Transport Security (HSTS) ](/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security)
3. [ X-Conten... | |
Mmdn_HTTP/HTTP_headers_34_10.txt | r blueprint for a better internet.
* [ MDN on Mastodon ](https://mozilla.social/@mdn)
* [ MDN on X (formerly Twitter) ](https://twitter.com/mozdevnet)
* [ MDN on GitHub ](https://github.com/mdn/)
* [ MDN Blog RSS Feed ](/en-US/blog/rss.xml)
## MDN
* [ About ](/en-US/about)
* [ Blog ](/en-US/blog/)
... | |
Mmdn_HTTP/HTTP_response_status_16_5.txt | s/417)
40. _[ ` 418 I'm a teapot ` ](/en-US/docs/Web/HTTP/Status/418) _
41. [ ` 421 Misdirected Request ` ](/en-US/docs/Web/HTTP/Status/421)
42. [ ` 422 Unprocessable Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ... | |
Mmdn_HTTP/HTTP_headers_21_1.txt | SP)
2. [ HTTP Strict Transport Security (HSTS) ](/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security)
3. [ X-Content-Type-Options ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
4. [ X-Frame-Options ](/en-US/docs/Web/HTTP/Headers/X-Frame-Options)
5. [ X-XSS-Protection ](/en-US/docs/Web/HTTP/He... | |
Mmdn_HTTP/HTTP_response_status_54_0.txt | * Skip to main content
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Mmdn_HTTP/CSP_directives_8_4.txt | S/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control) Non-standard
133. [ ` X-Forwarded-For ` ](/en-US/docs/Web/HTTP/Headers/X-Forwarded-For)... | |
Mmdn_HTTP/HTTP_headers_23_0.txt | * Skip to main content
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Mmdn_HTTP/CSP_directives_24_7.txt | sions-Policy: encrypted-media ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media) Experimental
11. [ Permissions-Policy: execution-while-not-rendered ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-not-rendered) Experimental
12. [ Permissions-Policy: execution-while-out-of-vie... | |
Mmdn_HTTP/CSP_directives_12_8.txt | ity Policy. These violation reports consist of JSON documents sent via an
HTTP POST request to the specified URI.
**Warning:** Though the [ ` report-to ` ](/en-
US/docs/Web/HTTP/Headers/Content-Security-Policy/report-to) directive is
intended to replace the deprecated **` report-uri ` ** directive, [ ` report-
to ` ](... | |
Mmdn_HTTP/HTTP_headers_3_8.txt | lossary/CSRF) attacks.
A client can ask that credentials should be included in cross-site requests in
one of two ways:
* Using [ ` fetch() ` ](/en-US/docs/Web/API/fetch) , by setting the [ ` credentials ` ](/en-US/docs/Web/API/Request/Request#credentials) option in the [ ` Request() ` ](/en-US/docs/Web/API/Request/... | |
Mmdn_HTTP/HTTP_headers_6_2.txt | HTTP/Headers/Content-Location)
33. [ ` Content-Range ` ](/en-US/docs/Web/HTTP/Headers/Content-Range)
34. [ ` Content-Security-Policy ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy)
35. [ ` Content-Security-Policy-Report-Only ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only)
... | |
Mmdn_HTTP/CSP_directives_24_2.txt | -Length)
32. [ ` Content-Location ` ](/en-US/docs/Web/HTTP/Headers/Content-Location)
33. [ ` Content-Range ` ](/en-US/docs/Web/HTTP/Headers/Content-Range)
34. [ ` Content-Security-Policy ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy)
35. [ ` Content-Security-Policy-Report-Only ` ](/en-US/docs... | |
Mmdn_HTTP/HTTP_headers_2_0.txt | * Skip to main content
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Mmdn_HTTP/Permissions_Policy_directives_33_6.txt | -src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem)
26. [ ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src)
27. [ ` CSP: style-src-attr ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-attr)
28. [ ` CSP: style-src-elem ` ](... | |
Mmdn_HTTP/HTTP_headers_26_4.txt | 128. [ ` Warning ` ](/en-US/docs/Web/HTTP/Headers/Warning) Deprecated
129. [ ` Width ` ](/en-US/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-... | |
Mmdn_HTTP/HTTP_response_status_4_8.txt | quest.
## Status
http
201 Created
## Specifications
Specification
---
[ HTTP Semantics
# status.201 ](https://www.rfc-editor.org/rfc/rfc9110#status.201)
## Browser compatibility
BCD tables only load in the browser with JavaScript enabled. Enable
JavaScript to view data.
## Se... | |
Mmdn_HTTP/HTTP_headers_30_1.txt | ecurity Policy (CSP) ](/en-US/docs/Web/HTTP/CSP)
2. [ HTTP Strict Transport Security (HSTS) ](/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security)
3. [ X-Content-Type-Options ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
4. [ X-Frame-Options ](/en-US/docs/Web/HTTP/Headers/X-Frame-Options)
5.... | |
Mmdn_HTTP/HTTP_response_status_29_4.txt | ed
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control) Non-standard
133. [ ` X-Forwarded-For ` ](/e... | |
Mmdn_HTTP/CSP_directives_14_4.txt | recated
129. [ ` Width ` ](/en-US/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/... | |
Mmdn_HTTP/HTTP_response_status_53_8.txt | ing-related headers that are sent along with this response should be taken
care of, as a 503 status is often a temporary condition and responses
shouldn't usually be cached.
## Status
http
503 Service Unavailable
## Specifications
Specification
---
[ HTTP Semantics
# status.503 ](https... | |
Mmdn_HTTP/HTTP_request_methods_2_6.txt | )
24. [ ` CSP: script-src-attr ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr)
25. [ ` CSP: script-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem)
26. [ ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src)
27. [... | |
Mmdn_HTTP/CSP_directives_14_8.txt | tions) ` : deny ` (which is also
supported in older browsers).
**Note:** **` frame-ancestors ` ** allows you to specify what parent source
may embed a page. This differs from **` frame-src ` ** , which allows you to
specify where iframes in a page may be loaded from.
CSP version | 2
---|---
Directive type | ... | |
Mmdn_HTTP/HTTP_response_status_44_3.txt | 84. [ ` Save-Data ` ](/en-US/docs/Web/HTTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-standard
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme) Experimental
87. [ ` ... | |
Mmdn_HTTP/Permissions_Policy_directives_5_1.txt | Headers/Strict-Transport-Security)
3. [ X-Content-Type-Options ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
4. [ X-Frame-Options ](/en-US/docs/Web/HTTP/Headers/X-Frame-Options)
5. [ X-XSS-Protection ](/en-US/docs/Web/HTTP/Headers/X-XSS-Protection)
6. [ Mozilla web security guidelines ](https:/... | |
Mmdn_HTTP/Permissions_Policy_directives_5_0.txt | * Skip to main content
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Mmdn_HTTP/HTTP_request_methods_4_3.txt | er)
83. [ ` RTT ` ](/en-US/docs/Web/HTTP/Headers/RTT) Experimental
84. [ ` Save-Data ` ](/en-US/docs/Web/HTTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-standard
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/doc... | |
Mmdn_HTTP/HTTP_request_methods_0_0.txt | * Skip to main content
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Mmdn_HTTP/Permissions_Policy_directives_2_9.txt | /en-US/blog/)
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Mmdn_HTTP/Permissions_Policy_directives_25_1.txt | urity Policy (CSP) ](/en-US/docs/Web/HTTP/CSP)
2. [ HTTP Strict Transport Security (HSTS) ](/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security)
3. [ X-Content-Type-Options ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
4. [ X-Frame-Options ](/en-US/docs/Web/HTTP/Headers/X-Frame-Options)
5. [... | |
Mmdn_HTTP/CSP_directives_0_4.txt | S/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Contr... | |
Mmdn_HTTP/Permissions_Policy_directives_22_8.txt | fically, where a defined policy blocks use of this feature, [ `
Document.requestStorageAccess() ` ](/en-
US/docs/Web/API/Document/requestStorageAccess) calls will return a [ ` Promise
` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) that rejects
with a [ ` DOMException ` ](/en-US/docs/Web/API/DOMExcepti... | |
Mmdn_HTTP/HTTP_response_status_34_6.txt | ript-src-attr ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr)
25. [ ` CSP: script-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem)
26. [ ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src)
27. [ ` CSP: style-src-att... | |
Mmdn_HTTP/CSP_directives_25_9.txt | e.
html
<script
src="https://example.com/example-framework.js"
integrity="sha384-oqVuAfXRKap7fdgcCY5uykM6+R9GqQ8K/uxy9rx7HNQlGYl1kPzQho1wx4JwY8wC sha256-not-in-csp"
crossorigin="anonymous"></script>
This rule only applies to _valid_ hash values. Values that are not recognized
as ... | |
Mmdn_HTTP/HTTP_response_status_18_7.txt | -not-rendered) Experimental
12. [ Permissions-Policy: execution-while-out-of-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-out-of-viewport) Experimental
13. [ Permissions-Policy: fullscreen ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen)
14. [ Permissions-Policy:... | |
Mmdn_HTTP/HTTP_response_status_55_6.txt | 4. [ ` CSP: script-src-attr ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr)
25. [ ` CSP: script-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem)
26. [ ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src)
27. [ ` CSP:... | |
Mmdn_HTTP/HTTP_request_methods_0_5.txt | TTP/Status/417)
40. [ ` 418 I'm a teapot ` ](/en-US/docs/Web/HTTP/Status/418)
41. [ ` 421 Misdirected Request ` ](/en-US/docs/Web/HTTP/Status/421)
42. [ ` 422 Unprocessable Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Depende... | |
Mmdn_HTTP/Permissions_Policy_directives_7_7.txt | n-while-not-rendered) Experimental
12. [ Permissions-Policy: execution-while-out-of-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-out-of-viewport) Experimental
13. [ Permissions-Policy: fullscreen ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen)
14. [ Permissions-... | |
Mmdn_HTTP/Permissions_Policy_directives_23_7.txt | icy/execution-while-not-rendered) Experimental
12. [ Permissions-Policy: execution-while-out-of-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-out-of-viewport) Experimental
13. [ Permissions-Policy: fullscreen ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen)
14. [ ... | |
Mmdn_HTTP/HTTP_response_status_20_9.txt | ivacy/websites/)
* [ Cookies ](https://www.mozilla.org/privacy/websites/#cookies)
* [ Legal ](https://www.mozilla.org/about/legal/terms/mozilla)
* [ Community Participation Guidelines ](https://www.mozilla.org/about/governance/policies/participation/)
Visit [ Mozilla Corporationâs ](https://www.mozilla.org) n... | |
Mmdn_HTTP/Header_Field_Definitions_44_0.txt | ### 14.35.2 Range Retrieval Requests
HTTP retrieval requests using conditional or unconditional GET methods MAY
request one or more sub-ranges of the entity, instead of the entire entity,
using the Range request header, which applies to the entity returned as the
result of the request:
Range = "... | |
Mmdn_HTTP/HTTP_response_status_59_5.txt | Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-US/docs/Web/HTTP/Status/424)
45. [ ` 425 Too Early ` ](/en-US/docs/Web/HTTP/Status/425)
46. [ ` 426 Upgrade Required ` ](/en-US/docs/Web/HTTP/Status/426)
47. [ ... | |
Mmdn_HTTP/HTTP_headers_32_0.txt | * Skip to main content
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Mmdn_HTTP/HTTP_response_status_11_3.txt | TTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-standard
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme) Experimental
87. [ ` Sec-CH-Prefers-Reduced-Motion ` ](/en-US/... | |
Mmdn_HTTP/HTTP_headers_34_3.txt | P/Headers/Repr-Digest) Experimental
82. [ ` Retry-After ` ](/en-US/docs/Web/HTTP/Headers/Retry-After)
83. [ ` RTT ` ](/en-US/docs/Web/HTTP/Headers/RTT) Experimental
84. [ ` Save-Data ` ](/en-US/docs/Web/HTTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/... | |
Mmdn_HTTP/Permissions_Policy_directives_12_8.txt | /docs/Web/API/Accelerometer/Accelerometer
"Accelerometer\(\)") constructor calls will throw a [ ` DOMException ` ](/en-
US/docs/Web/API/DOMException) of type ` SecurityError ` .
## Syntax
http
Permissions-Policy: accelerometer=<allowlist>;
` <allowlist> `
A list of origins for which permi... | |
Mmdn_HTTP/Permissions_Policy_directives_6_2.txt | icy-Report-Only ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only)
36. [ ` Content-Type ` ](/en-US/docs/Web/HTTP/Headers/Content-Type)
37. [ ` Cookie ` ](/en-US/docs/Web/HTTP/Headers/Cookie)
38. [ ` Critical-CH ` ](/en-US/docs/Web/HTTP/Headers/Critical-CH) Experimental
39. [ ` Cross-... | |
Mmdn_HTTP/CSP_directives_3_3.txt | e-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-standard
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme) Experimental
87. [ ` Sec-CH-Prefers-Reduced-Motion ` ](/en-US/docs/Web/HTTP/H... | |
Mmdn_HTTP/CSP_directives_24_5.txt | 8 I'm a teapot ` ](/en-US/docs/Web/HTTP/Status/418)
41. [ ` 421 Misdirected Request ` ](/en-US/docs/Web/HTTP/Status/421)
42. [ ` 422 Unprocessable Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-US/docs/Web/HTTP/S... | |
Mmdn_HTTP/HTTP_response_status_36_0.txt | * Skip to main content
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* [ Overview / Web Technology Web technology reference for developers ](/en-US/docs/Web)
* [ HTML Structure of content on the web ](/en-US/do... | |
Mmdn_HTTP/HTTP_response_status_5_3.txt | ` ](/en-US/docs/Web/HTTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-standard
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme) Experimental
87. [ ` Sec-CH-Prefers-Reduc... | |
Mmdn_HTTP/HTTP_request_methods_7_3.txt | en-US/docs/Web/HTTP/Headers/RTT) Experimental
84. [ ` Save-Data ` ](/en-US/docs/Web/HTTP/Headers/Save-Data) Experimental
85. [ ` Sec-Browsing-Topics ` ](/en-US/docs/Web/HTTP/Headers/Sec-Browsing-Topics) Experimental Non-standard
86. [ ` Sec-CH-Prefers-Color-Scheme ` ](/en-US/docs/Web/HTTP/Headers/Sec-CH... | |
Mmdn_HTTP/Permissions_Policy_directives_9_2.txt | [ ` Content-Security-Policy ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy)
35. [ ` Content-Security-Policy-Report-Only ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only)
36. [ ` Content-Type ` ](/en-US/docs/Web/HTTP/Headers/Content-Type)
37. [ ` Cookie ` ](/en-US/docs/Web/HTTP... | |
Mmdn_HTTP/HTTP_response_status_33_0.txt | * Skip to main content
* Skip to search
* Skip to select language
[ MDN Web Docs ](/en-US/) Open main menu
* References [ References ](/en-US/docs/Web)
* [ Overview / Web Technology Web technology reference for developers ](/en-US/docs/Web)
* [ HTML Structure of content on the web ](/en-US/do... | |
Mmdn_HTTP/HTTP_headers_10_0.txt | * Skip to main content
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* [ Overview / Web Technology Web technology reference for developers ](/en-US/docs/Web)
* [ HTML Structure of content on the web ](/en-US/do... | |
Mmdn_HTTP/HTTP_response_status_37_5.txt | ocs/Web/HTTP/Status/418)
41. [ ` 421 Misdirected Request ` ](/en-US/docs/Web/HTTP/Status/421)
42. [ ` 422 Unprocessable Content ` ](/en-US/docs/Web/HTTP/Status/422)
43. [ ` 423 Locked ` ](/en-US/docs/Web/HTTP/Status/423)
44. [ ` 424 Failed Dependency ` ](/en-US/docs/Web/HTTP/Status/424)
45. [ ` 425 ... | |
Mmdn_HTTP/Header_Field_Definitions_1_1.txt | 4](rfc2616-sec0.html#sec0.4)
text/html;level=3 = [0.7](rfc2616-sec0.html#sec0.7)
Note: A user agent might be provided with a default set of quality
values for certain media ranges. However, unless the user agent is
a closed system which cannot interact... | |
Mmdn_HTTP/CSP_directives_26_6.txt | tent-Security-Policy/script-src-attr)
25. [ ` CSP: script-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem)
26. _[ ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src) _
27. [ ` CSP: style-src-attr ` ](/en-US/docs/Web/HTTP/Headers/Content-Secu... | |
Mmdn_HTTP/HTTP_response_status_45_4.txt | d
129. [ ` Width ` ](/en-US/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HT... | |
Mmdn_HTTP/HTTP_response_status_57_7.txt | ental
11. [ Permissions-Policy: execution-while-not-rendered ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-not-rendered) Experimental
12. [ Permissions-Policy: execution-while-out-of-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-while-out-of-viewport) Experimental
... | |
Mmdn_HTTP/List_of_HTTP_header_fields_10_2.txt | ps://datatracker.ietf.org/doc/html/rfc9111) . June 2022. sec. 5.5. [ doi ](/wiki/Doi_\(identifier\) "Doi \(identifier\)") : [ 10.17487/RFC9111 ](https://doi.org/10.17487%2FRFC9111) . [ RFC ](/wiki/Request_for_Comments "Request for Comments") [ 9111 ](https://datatracker.ietf.org/doc/html/rfc9111) .
22. ** ^ ** [ "... | |
Mmdn_HTTP/HTTP_headers_20_2.txt | . [ ` Content-Security-Policy-Report-Only ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only)
36. [ ` Content-Type ` ](/en-US/docs/Web/HTTP/Headers/Content-Type)
37. [ ` Cookie ` ](/en-US/docs/Web/HTTP/Headers/Cookie)
38. [ ` Critical-CH ` ](/en-US/docs/Web/HTTP/Headers/Critical-CH) Experi... | |
Mmdn_HTTP/CSP_directives_29_4.txt | W-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
131. [ ` X-Content-Type-Options ` ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
132. [ ` X-DNS-Prefetch-Control ` ](/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control) Non-standard
133. [ ` X-Forwarded-For ` ](/en-US/docs/Web/HTTP/... | |
Mmdn_HTTP/HTTP_response_status_60_6.txt | attr ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr)
25. [ ` CSP: script-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem)
26. [ ` CSP: style-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src)
27. [ ` CSP: style-src-attr ` ](/en... |
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