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[Bug 9214] Allow role="presentation" img as conformance Criteria

From: <bugzilla@jessica.w3.org>
Date: Tue, 07 Sep 2010 14:54:53 +0000
To: public-html-a11y@w3.org
Message-Id: <E1OszZV-0006ri-Vp@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=9214





--- Comment #22 from Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>  2010-09-07 14:54:48 ---
(In reply to comment #21)
> (In reply to comment #20)
> > Bug triage sub-team thinks this is fixed. Assigning to Steve to verify fix; if
> > so, please change status to "verified", otherwise ping bug triage sub-team.

> This bug isn't fixed as @role="presentation" isn't a part conformance criteria
> in HTML5. WAI CG recommended that it should be in their "Consensus Resolutions
> on Text alternatives in HTML 5" document.
> http://www.w3.org/2009/06/Text-Alternatives-in-HTML5

Laura, 

so far you have not offered any direct response to Ian's resolution in comment
#16, other adding tracker request etc.  

Because of this, I find it hard to know whether I agree or disagree that this
bug is solved.  I think it could be helpful if you pinpointed the exact things
you disagree with in his resolution.

If you could also show a code example, and explain the problems with the way
HTML5 currently requires  conformance checkers to check that piece of code,
then that would be helpful too.

Thanks.


PS: This is how I understand the conflict betweent the Consensus Document and
HTML5:

Per the Consensus Document, then the very presence of role="presentation" -
irrespective of empty @alt, non-empty @alt or no alt attribute at all,  would
make the <img> valid. 

Whereas, in contrast, HTML5, section 4.8.1.1.14 (Guidance for conformance
checkers) fails to list presence of role="presentation" as a condition when it
would be permitted to not add the @alt attribute.  (Quote: "A conformance
checker must report the lack of an alt attribute as an error unless one of the
conditions listed below applies:" )

Thus, i suppose you want @role="presentation" to  make <img> elements which
lack  any ue of @alt, as valid.

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