Aria role=alert on UL tag fails validation

Bug 23877 – Checker fails use of ARIA role=alert on UL element
submitted on Nov 20, 2013
I used http://validator.w3.org/check
and also http://validator.nu
The validator fails use of role=alert on a UL tag
Row 53 Column 44: Bad value alert for attribute role on element ul.<ul
id="errlist" role="alert" tabindex="-1">
✉
Test  the page at
http://mars.dequecloud.com/demo/form-alert2.htm

I did not see this error a few months ago on the same page and code.
So I am surprised why it is being flagged as an issue now. role=alert
is a valid role as per ARIA specs.
http://www.w3.org/TR/wai-aria/roles#alert
Thanks and regards,
Sailesh Panchang

Received on Wednesday, 20 November 2013 21:49:04 UTC