id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
Mmdn_HTTP/HTTP_response_status_25_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-Reduced... | |
Mmdn_HTTP/HTTP_response_status_25_1.txt | grade 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-Content-Type-Options ](/en-US/docs/Web/HTTP/Header... | |
Mmdn_HTTP/HTTP_headers_16_8.txt | -US/docs/Glossary/Forbidden_header_name) | no
## Syntax
http
X-Forwarded-Proto: <protocol>
## Directives
<protocol>
The forwarded protocol (http or https).
## Examples
http
X-Forwarded-Proto: https
Other non-standard forms:
http
# Microsoft
... | |
Mmdn_HTTP/Permissions_Policy_directives_8_4.txt | TP/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-Proto ` ](/en-US/docs/Web/HTTP/Headers/X-Forwarded-Proto) ... | |
Mmdn_HTTP/Permissions_Policy_directives_14_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-Reduced-M... | |
Mmdn_HTTP/HTTP_request_methods_1_4.txt | ndard 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-Control) Non-standard
133. [ ` X-Forwa... | |
Mmdn_HTTP/HTTP_response_status_26_6.txt | -Security-Policy/script-src)
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-... | |
Mmdn_HTTP/HTTP_response_status_42_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)
... | |
Mmdn_HTTP/HTTP_headers_32_8.txt | n-US/docs/Glossary/Forbidden_header_name) | no
## Syntax
` Repr-Digest ` describes an [ RFC8941 dictionary ](https://www.rfc-
editor.org/rfc/rfc8941#section-3.2) with its keys being names of digest
algorithms and its values being the digest in bytes (or an integer digest for
legacy digest algorithms).
**Note:... | |
Mmdn_HTTP/CSP_directives_29_5.txt | [ ` 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 Too Early ` ](/en-US/docs/Web/HTT... | |
Mmdn_HTTP/HTTP_response_status_33_1.txt | 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-Content-Type-Options... | |
Mmdn_HTTP/HTTP_response_status_7_6.txt | aders/Content-Security-Policy/script-src)
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/Cont... | |
Mmdn_HTTP/HTTP_response_status_35_4.txt | -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-Prefetch-Con... | |
Mmdn_HTTP/CSP_directives_27_5.txt | /en-US/docs/Web/HTTP/Status/416)
39. [ ` 417 Expectation Failed ` ](/en-US/docs/Web/HTTP/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)
... | |
Mmdn_HTTP/HTTP_response_status_10_8.txt | ocs/Web/HTTP/Headers/Connection)
* [ ` Retry-After ` ](/en-US/docs/Web/HTTP/Headers/Retry-After)
## Help improve MDN
Was this page helpful to you?
Yes No
[ Learn how to contribute
](https://github.com/mdn/content/blob/main/CONTRIBUTING.md "This will take you
to our contribution guidelines on GitHub.") .
This p... | |
Mmdn_HTTP/HTTP_headers_27_9.txt | a.org/about/governance/policies/participation/)
Visit [ Mozilla Corporationâs ](https://www.mozilla.org) not-for-profit
parent, the [ Mozilla Foundation ](https://foundation.mozilla.org/) .
Portions of this content are ©1998â 2024 by individual mozilla.org
contributors. Content available under [ a Creative... | |
Mmdn_HTTP/HTTP_response_status_33_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/Permissions_Policy_directives_5_7.txt | al
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: gamepad ](/en-US/docs/We... | |
Mmdn_HTTP/HTTP_response_status_17_10.txt |
]: Deprecated. Not for use in new websites.
*[
Experimental
]: Experimental. Expect behavior to change in the future.
| |
Mmdn_HTTP/HTTP_headers_1_4.txt | nt-Digest) Non-standard Deprecated
127. [ ` Want-Repr-Digest ` ](/en-US/docs/Web/HTTP/Headers/Want-Repr-Digest) Experimental
128. [ ` Warning ` ](/en-US/docs/Web/HTTP/Headers/Warning) Deprecated
129. [ ` Width ` ](/en-US/docs/Web/HTTP/Headers/Width) Non-standard Deprecated
130. [ ` WWW-Authenticat... | |
Mmdn_HTTP/HTTP_response_status_4_6.txt | ntent-Security-Policy/script-src)
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-Secu... | |
Mmdn_HTTP/Permissions_Policy_directives_20_2.txt | rs/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. [ ` Content-Type ` ](/en-US/docs/Web/HTTP/Headers/Content-Type)
37. [ ` Cookie... | |
Mmdn_HTTP/Permissions_Policy_directives_1_4.txt | ent-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) Non-standard
134. [ ` X-Forwarded-Host ` ](/en-US/docs/... | |
Mmdn_HTTP/HTTP_headers_16_3.txt | rowsing-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/Headers/Sec-CH-Prefers-Reduced-Motion) E... | |
Mmdn_HTTP/HTTP_response_status_14_7.txt | b/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-viewport ](/en-US/docs/Web/HTTP/Headers/Permissio... | |
Mmdn_HTTP/HTTP_response_status_31_4.txt | 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 ` ](/en-US/docs/Web/HTT... | |
Mmdn_HTTP/Permissions_Policy_directives_28_6.txt | 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 ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem)
29. [ ` CSP... | |
Mmdn_HTTP/Permissions_Policy_directives_12_2.txt | tent-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. [ ` Content... | |
Mmdn_HTTP/CSP_directives_7_5.txt | 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 Too Early ` ](/en-US/docs/W... | |
Mmdn_HTTP/CSP_directives_0_0.txt | * Skip to main content
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* 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_response_status_33_3.txt | ntal
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
... | |
Mmdn_HTTP/HTTP_response_status_53_7.txt | perimental
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... | |
Mmdn_HTTP/Permissions_Policy_directives_7_2.txt | eaders/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/Headers/Cookie)
38. [ ` Critical-CH ` ](/en-US/doc... | |
Mmdn_HTTP/Permissions_Policy_directives_33_2.txt | rs/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. [ ` Content-Type ` ](/en-US/docs/Web/HTTP/Headers/Content-Type)
37. [ ` Cookie... | |
Mmdn_HTTP/HTTP_headers_35_5.txt | /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 ` ](/e... | |
Mmdn_HTTP/HTTP_response_status_20_1.txt | ocs/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-Content-Type-Options ](/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options)
... | |
Mmdn_HTTP/HTTP_headers_8_1.txt | 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-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-Option... | |
Mmdn_HTTP/CSP_directives_28_7.txt | ssions-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-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execution-... | |
Mmdn_HTTP/Permissions_Policy_directives_29_6.txt | rity-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 ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/st... | |
Mmdn_HTTP/Permissions_Policy_directives_15_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/Header_Field_Definitions_38_0.txt | ### 14.31 Max-Forwards
The Max-Forwards request-header field provides a mechanism with the TRACE
(section 9.8) and OPTIONS (section 9.2) methods to limit the number of proxies
or gateways that can forward the request to the next inbound server. This can
be useful when the client is attempting to trace a request chai... | |
Mmdn_HTTP/CSP_directives_27_2.txt | ` ](/en-US/docs/Web/HTTP/Headers/Content-Language)
31. [ ` Content-Length ` ](/en-US/docs/Web/HTTP/Headers/Content-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 ` ... | |
Mmdn_HTTP/HTTP_response_status_44_1.txt | )
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-Content-Type-Options ](/en-U... | |
Mmdn_HTTP/HTTP_response_status_23_8.txt | les only load in the browser with JavaScript enabled. Enable
JavaScript to view data.
## See also
* [ ` 404 ` ](/en-US/docs/Web/HTTP/Status/404)
* [ 410 gone ](https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#410)
## Help improve MDN
Was this page helpful to you?
Yes No
[ Learn how to contribute
](... | |
Mmdn_HTTP/HTTP_headers_21_6.txt | 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 ` ](/en-US/docs/Web/HTTP/Headers/Conten... | |
Mmdn_HTTP/HTTP_response_status_13_8.txt | 7 `
Faced with this error, browsers usually either abort the operation (for
example, a download will be considered as non-resumable) or ask for the whole
document again.
## Status
http
416 Range Not Satisfiable
## Specifications
Specification
---
[ HTTP Semantics
# status.416 ](https:... | |
Mmdn_HTTP/CSP_directives_19_5.txt | 1 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 Too Early ` ](/en-US/docs/Web/HTTP/Stat... | |
Mmdn_HTTP/HTTP_request_methods_0_2.txt | cs/Web/HTTP/Headers/Content-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-... | |
Mmdn_HTTP/HTTP_headers_34_7.txt | Policy/display-capture)
9. [ Permissions-Policy: document-domain ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/document-domain) Experimental
10. [ Permissions-Policy: encrypted-media ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media) Experimental
11. [ Permissions-Policy: execution-whi... | |
Mmdn_HTTP/CSP_directives_10_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/CSP_directives_8_8.txt | media-src ` policy:
http
Content-Security-Policy: media-src <source>;
Content-Security-Policy: media-src <source> <source>;
### Sources
` <source> ` can be any one of the values listed in [ CSP Source Values ](/en-
US/docs/Web/HTTP/Headers/Content-Security-Policy/Sources#sources) .
Note tha... | |
Mmdn_HTTP/CSP_directives_2_9.txt | astodon ](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/)
* [ Careers ](https://www.mozilla.org/en-US/caree... | |
Mmdn_HTTP/Permissions_Policy_directives_28_2.txt | rs/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/Headers/Cookie)
38. [ ` Critical-CH ` ](/en-US/docs/We... | |
Mmdn_HTTP/HTTP_response_status_29_7.txt | cs/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-viewport ](/en-US/docs/Web/HTTP/Headers/Perm... | |
Mmdn_HTTP/HTTP_response_status_56_3.txt | ` ](/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/Sec-CH-Prefers-Reduced-Transparency) Experi... | |
Mmdn_HTTP/Permissions_Policy_directives_17_7.txt | 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
13. [ Permiss... | |
Mmdn_HTTP/Permissions_Policy_directives_30_9.txt | .org/products/mdn-plus)
* [ Report an issue ](/en-US/docs/MDN/Community/Issues)
## Our communities
* [ MDN Community ](/en-US/community)
* [ MDN Forum ](https://discourse.mozilla.org/c/mdn/236)
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## Developers
* [ Web Technologies ](/en-US/docs/Web)
* [ Learn Web Development ](/... | |
Mmdn_HTTP/HTTP_request_methods_5_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/Header_Field_Definitions_21_0.txt | ### 14.15 Content-MD5
The Content-MD5 entity-header field, as defined in RFC 1864 [ [23]
](rfc2616-sec17.html#bib23) , is an MD5 digest of the entity-body for the
purpose of providing an end-to-end message integrity check (MIC) of the
entity-body. (Note: a MIC is good for detecting accidental modification of the
ent... | |
Mmdn_HTTP/HTTP_response_status_23_7.txt | S/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-viewport ](/en-US/docs/Web/HTTP/Headers/... | |
Mmdn_HTTP/HTTP_response_status_54_1.txt | _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-Content-Type-Options ](/... | |
Mmdn_HTTP/HTTP_response_status_31_8.txt | ) .
This page was last modified on Apr 10, 2023 by [ MDN contributors ](/en-
US/docs/Web/HTTP/Status/505/contributors.txt) .
[ View this page on GitHub
](https://github.com/mdn/content/blob/main/files/en-
us/web/http/status/505/index.md?plain=1 "Folder: en-us/web/http/status/505
\(Opens in a new tab\)") ⢠[ Rep... | |
Mmdn_HTTP/HTTP_request_methods_5_9.txt | o change in the future.
| |
Mmdn_HTTP/Permissions_Policy_directives_22_6.txt | cs/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-types ` ](/en-US/docs/Web/HTTP... | |
Mmdn_HTTP/HTTP_headers_38_4.txt | /en-US/docs/Web/HTTP/Headers/Want-Repr-Digest) Experimental
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-Con... | |
Mmdn_HTTP/HTTP_response_status_11_4.txt | . [ ` 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 ` ](/en-US/docs/W... | |
Mmdn_HTTP/CSP_directives_27_4.txt | al
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-Cont... | |
Mmdn_HTTP/Permissions_Policy_directives_19_2.txt | 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-Origin-Embedder-Policy `... | |
Mmdn_HTTP/CSP_directives_10_3.txt | 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-standard
86. [ ` Sec-CH-Prefers-C... | |
Mmdn_HTTP/Permissions_Policy_directives_0_7.txt | eb/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/Permission... | |
Mmdn_HTTP/CSP_directives_15_2.txt | /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-Security-Policy-Report... | |
Mmdn_HTTP/HTTP_response_status_4_5.txt | 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 ` ](/en... | |
Mmdn_HTTP/HTTP_response_status_13_4.txt | on-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-Control) Non-standard
133. [ ` X... | |
Mmdn_HTTP/HTTP_response_status_60_7.txt | b/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-viewport ](/en-US/docs/Web/HTTP/Headers/Permissio... | |
Mmdn_HTTP/HTTP_headers_17_6.txt | c-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 ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem)
29.... | |
Mmdn_HTTP/Permissions_Policy_directives_24_6.txt | ript-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-Security-Policy/style-src-attr... | |
Mmdn_HTTP/HTTP_response_status_31_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/Permissions_Policy_directives_25_8.txt | Policy: screen-wake-lock=<allowlist>;
` <allowlist> `
A list of origins for which permission is granted to use the feature. See [ `
Permissions-Policy ` > Syntax ](/en-US/docs/Web/HTTP/Headers/Permissions-
Policy#syntax) for more details.
## Default policy
The default allowlist for ` screen-wake-lock ` ... | |
Mmdn_HTTP/Permissions_Policy_directives_16_4.txt | 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) Non-standa... | |
Mmdn_HTTP/Permissions_Policy_directives_9_0.txt | * Skip to main content
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* References [ References ](/en-US/docs/Web)
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* [ HTML Structure of content on the web ](/en-US/do... | |
Mmdn_HTTP/HTTP_headers_27_6.txt | . [ ` CSP: style-src-elem ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem)
29. [ ` CSP: trusted-types ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/trusted-types) Experimental
30. [ ` CSP: upgrade-insecure-requests ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/upgr... | |
Mmdn_HTTP/Permissions_Policy_directives_20_4.txt | ent-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) Non-standard
134. [ ` X-Forwarded-Host ` ](/en-US/docs/... | |
Mmdn_HTTP/Permissions_Policy_directives_35_5.txt | 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. [ ` 429 Too Many Requests ` ](/en-US/docs/Web/HTTP/Statu... | |
Mmdn_HTTP/HTTP_request_methods_7_9.txt | low) header
* [ CORS ](/en-US/docs/Web/HTTP/CORS)
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Mmdn_HTTP/Permissions_Policy_directives_33_3.txt | /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/Headers/Sec-CH-Prefers-Reduced-Motion) Experimental
88. [ ` Sec-CH-Prefers... | |
Mmdn_HTTP/HTTP_headers_25_6.txt | ntent-Security-Policy/require-trusted-types-for) Experimental
22. [ ` CSP: sandbox ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/sandbox)
23. [ ` CSP: script-src ` ](/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src)
24. [ ` CSP: script-src-attr ` ](/en-US/docs/Web/HTTP/Headers/Con... | |
Mmdn_HTTP/HTTP_response_status_21_2.txt | 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/Headers/Cookie)
38. [ ` Critical-CH ` ](/en-US/docs/Web/H... | |
Mmdn_HTTP/CSP_directives_6_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/Permissions_Policy_directives_10_4.txt | cs/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) Non-standard
134. [ ` X-Forwarded-Host ` ](/en-US/docs/Web/HTTP/Headers/X-Forwarded-H... | |
Mmdn_HTTP/Permissions_Policy_directives_18_9.txt | idelines/Attrib_copyright_license) .
*[
Non-standard
]: Non-standard. Check cross-browser support before using.
*[
Deprecated
]: Deprecated. Not for use in new websites.
*[
... | |
Mmdn_HTTP/CSP_directives_23_3.txt | tal
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/Headers/Sec-CH-Pre... | |
Mmdn_HTTP/HTTP_headers_16_4.txt | s/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) Non-standard
134... | |
Mmdn_HTTP/HTTP_request_methods_0_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-DNS... | |
Mmdn_HTTP/HTTP_response_status_36_3.txt | /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-Color-Scheme) Expe... | |
Mmdn_HTTP/HTTP_response_status_52_7.txt | 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-viewport ](/en-US/docs/Web/HTTP/Headers/Permissions-Policy/execu... | |
Mmdn_HTTP/CSP_directives_2_1.txt | onnection_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. ... | |
Mmdn_HTTP/CSP_directives_26_5.txt | est ` ](/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 Too Early ` ](/en-US/docs/Web/HTTP/Status/425)
46. [ ... | |
Mmdn_HTTP/HTTP_response_status_6_1.txt | ct-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://wiki.mozill... | |
Mmdn_HTTP/HTTP_response_status_51_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/docs/W... | |
Mmdn_HTTP/HTTP_headers_20_1.txt | s/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://wiki.... |
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