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Re: The HTML5 outline algorithm and JAWS

for

From: Steve Faulkner
Date: Mar 11, 2014 4:52AM

Hi Al,
this is a bug in JAWS and the use of the algorithm has subsequently been
removed (In JAWS 15).
I would not recommend adding aria roles and attributes to fix a transient
bug in one AT.

--

Regards

SteveF
HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>;


On 11 March 2014 10:33, Alistair Duggin < <EMAIL REMOVED> >wrote:

> Hi,
>
> I was recently made aware that a couple of version of Jaws (12 - 14?)
> implements the HTML5 outline algorithm which causes the wrong heading
> levels to be exposed in IE and Firefox when an author explicitly specifies
> the heading levels.
>
> There are a couple of article about it here:
>
> http://accessibleculture.org/articles/2011/10/jaws-ie-and-headings-in-html5/
> http://juicystudio.com/article/html5-outline-algorithm-jaws.php
>
> There is a fix for this - to use role="heading" and to set aria-level to
> the expected level.
>
> <section>
> <h2 role="heading" aria-level="2">Section Heading</h2>
> </section>
>
>
> Is it best practice to apply role and aria level to all headings on a
> website that is using HTML5 elements? Or is this considered an AT bug and
> as such to be ignored?
> I have only seen one website implemented this fix.
>
> I've created some demo pages to illustrate the problem and the fix:
>
> This page demonstrates the problem
>
> http://moneyadviceservice.github.io/accessibility-sandbox/heading-hierarchy/no-aria.html
>
> This page has the wai-aria fix directly added to the markup
>
> http://moneyadviceservice.github.io/accessibility-sandbox/heading-hierarchy/aria-hard-coded.html
>
> This page has the wai-aria fix added with javascript
>
> http://moneyadviceservice.github.io/accessibility-sandbox/heading-hierarchy/aria-added-with-js.html
>
>
> cheers,
> Al
>
>
>
> > > >