[Bug 21565] Should it be an error to use @longdesc on presentational images? And/Or should it _affect_ the role of the image?

https://www.w3.org/Bugs/Public/show_bug.cgi?id=21565

--- Comment #13 from Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no> ---
(In reply to comment #12)
> > NOTE 3: I recommend someone with access to Jaws, NVDA etc to check whether
> > an image with alt="<empty>" + longdesc="foo" causes the screenreader to
> > ignore the image.
> 
> *JAWS 13 ignores an image with alt="" and longdesc="some value". However, it
> conveys the presence of long description on an image with alt="value" and
> longdesc="some value".

Thanks for conforming!

> *NVDA ver 2012.2.1 ignores an image with alt="" and longdesc="some value".
> However, it fails to convey information regarding the long description for
> an image with alt="value" and longdesc="some value".
> Both results were run on IE8; Win 7 and may differ based on the selected
> browser / AT.
> -Devarshi

For NVDA, then I believe you would get better results if you used the latest
version of Firefox.

Some comment:

* Compatibility with current longdesc supporting AT suggest that it is best if
AT continue to ignore @longdesc when calculating whether the image is
presentational.

* With a look at the 'Longdesc lottery', then we can conclude that images with
an empty alt *and* a longdesc attribute, is not going to disturb AT users.
Which seems like an argumentative win.

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Received on Friday, 5 April 2013 15:14:01 UTC