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PragmaExtensions: Difference between revisions

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(→‎Proposed extensions: Per https://html.spec.whatwg.org/#attr-meta-http-equiv-x-ua-compatible , X-UA-Compatible is now part of the HTML spec itself and no longer a proposed extension)
(Obsolete this page.)
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This page lists allowed and proposed extension values for the http-equiv="" attribute of the <meta> element in HTML. For the detailed registration requirements, [http://www.whatwg.org/html#concept-http-equiv-extensions see the specification].
This page formerly hosted a registry for [https://html.spec.whatwg.org/multipage/semantics.html#pragma-directives http-equiv pragma directives] for the <code>meta</code> element. As of https://github.com/whatwg/html/commit/72d084b81fa94915518b9cf279afef87d835e88e, that model has been abandoned, and further pragma directives must go through the normal standards process for new features instead.
 
== Allowed extensions ==
 
The following extensions conform to all the registration requirements in the HTML spec and are therefore allowed in valid documents.
 
{| class="wikitable"
! Keyword
! Brief description
! Specification
|-
| PICS-Label
| Labels that help content advisory software protect children from potentially harmful material [[http://www.fosi.org/icra/ more]]
| [http://www.w3.org/TR/REC-PICS-labels/ PICS Label Distribution Label Syntax and Communication Protocols]
|}
 
== Proposed extensions ==
 
The following proposed extensions do not yet conform to all the registration requirements in the HTML spec and are therefore not yet allowed in valid documents.
 
{| class="wikitable"
! Keyword
! Brief description
! Specification
|-
| x-dns-prefetch-control
| Allows turning prefetching "on" or "off". There's an equivalent HTTP header. Which takes precedence is undefined.
| [https://developer.mozilla.org/En/Controlling_DNS_prefetching Controlling DNS prefetching]
|}
 
[[Category:Registries]]

Revision as of 22:32, 13 December 2017

This page formerly hosted a registry for http-equiv pragma directives for the meta element. As of https://github.com/whatwg/html/commit/72d084b81fa94915518b9cf279afef87d835e88e, that model has been abandoned, and further pragma directives must go through the normal standards process for new features instead.