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[Bug 11984] Simplify <video> for implementors and authors by ignoring the Content-Type HTTP header

From: <bugzilla@jessica.w3.org>
Date: Tue, 15 Feb 2011 03:25:55 +0000
To: public-html-bugzilla@w3.org
Message-Id: <E1PpBY3-00052Z-Fz@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=11984

David Singer <singer@apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |singer@apple.com

--- Comment #10 from David Singer <singer@apple.com> 2011-02-15 03:25:54 UTC ---
Content-type has decreasing utility; it fails to handle files that conform to
more than one standard (one file can simultaneously be valid as video/3gpp,
video/mp4, and video/3gpp2, for example). Many users cannot configure their web
servers to return correct content-types (it's not under their control). A a
declared attribute in the markup, type has utility. As a guess from the
file-extension by the web server, the utility is marginal at best; the UA can
and usually does do better at deducing what the correct type of a file is.
Given that you have to be prepared, at the UA, to disbelieve what you're told,
or adjust it, we question whether tangling the web server's guess into the UA
behavior makes life any simpler or more interoperable.

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