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[Bug 12456] On some web-hostings authors cannot use/manage real HTTP headers. So there must be an opportunity to point out some more "http-equiv" document properties: media (content-)type - application/xhtml+xml, 'cache-control', perhaps 'last-modified' and 'expires'

From: <bugzilla@jessica.w3.org>
Date: Fri, 08 Apr 2011 22:51:09 +0000
To: public-html-bugzilla@w3.org
Message-Id: <E1Q8KWD-00076t-1U@jessica.w3.org>

Kornel Lesinski <kornel@geekhood.net> changed:

           What    |Removed                     |Added
                 CC|                            |kornel@geekhood.net

--- Comment #1 from Kornel Lesinski <kornel@geekhood.net> 2011-04-08 22:51:08 UTC ---
Content-Type change via http-equiv is not possible in current browsers, but
there are text/html pages in the wild that have application/xhtml+xml in
http-equiv, so adding support for this could break those pages.

I'm also wary of introducing in-document way of declaring "XHTMLness",
especially one that would result in text/html interpretation in some browsers.
It may be confusing like XHTML/1.0 DOCTYPEs were and cause some authors to
produce text/html documents that fail in XML mode.

I think current HTML5 state is better - there's only one way to enable XHTML
and it's quite clear, even if not most convenient on shared hosting.

Cache-related headers in response body won't be seen by HTTP proxies, which
would make caching less effective or inconsistent. Widespread use of http-equiv
headers would force proxies to parse HTML, and that would be significant and
unfortunate change in the HTTP protocol.

In my experience more and more hostings support .htaccess files, so I think
that's a better direction, and hosts may support setting of HTTP headers sooner
and with lower cost than it takes to change all HTTP agents support http-equiv.

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Received on Friday, 8 April 2011 22:51:13 UTC

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