[Bug 17464] Don't throw error for <meta http-equiv="X-foo"

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17464

--- Comment #1 from Mathias Bynens <mathias@qiwi.be> 2012-06-12 09:02:29 UTC ---
http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#concept-http-equiv-extensions
says:

> 4.2.5.4 Other pragma directives

> Extensions to the predefined set of pragma directives may, under certain 
> conditions, be registered in the WHATWG Wiki PragmaExtensions page. 
> [WHATWGWIKI]

> Such extensions must use a name that is identical to an HTTP header registered
> in the Permanent Message Header Field Registry, and must have behavior 
> identical to that described for the HTTP header. [IANAPERMHEADERS]

> Pragma directives corresponding to headers describing metadata, or not
> requiring specific user agent processing, must not be registered; instead, use
> metadata names. Pragma directives corresponding to headers that affect the HTTP
> processing model (e.g. caching) must not be registered, as they would result in
> HTTP-level behavior being different for user agents that implement HTML than
> for user agents that do not.

`X-UA-Compatible` is not listed on
<http://www.iana.org/assignments/message-headers/perm-headers.html>.
Does that mean it can’t be registered?

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Received on Tuesday, 12 June 2012 09:13:51 UTC