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[Bug 7744] Is sniffing required?

From: <bugzilla@wiggum.w3.org>
Date: Thu, 11 Feb 2010 09:45:01 +0000
To: public-html-bugzilla@w3.org
Message-Id: <E1NfVbZ-0000Kj-6p@wiggum.w3.org>

--- Comment #25 from Larry Masinter <masinter@adobe.com>  2010-02-11 09:45:00 ---
"The Content-Type metadata of the result of fetching a representation from a
resource depends on the URI scheme and corresponding protocol. However, there
are some circumstances where additional heuristics (overriding the protocol
defaults) are needed for compatibility with current web sites.  Guidelines for
determining an appropriate content-type to presume are being developed
elsewhere [MIMESNIFF]; in particular, user agents MUST NOT use additional
heuristics or override authoritative metadata in ways that are not explicitly

This makes it clear that sniffing is MAY and not MUST, that the guidelines are
when NOT to sniff (rather than when one MUST sniff), and allows the MIMESNIFF
document to evolve independently of the HTML specification.

I think this would resolve the bugin a way that would let HTML go to Last Call.
If MIMESNIFF actually gets onto IETF standards track, then you can update the
reference then.

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Received on Thursday, 11 February 2010 09:45:02 UTC

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