Bad value navigation for attribute role on element ul

[gigimuschi]

In the WordPress administration dashboard the menu list contains the attribute "role" with the value of "navigation" and accordingly to HTML5 this is wrong.

Code: <ul id="adminmenu" role="navigation">
Error: Bad value navigation for attribute role on element ul.

[Latz]

​According to w3c it should look like this:

<nav role="navigation">
<ul>
<li>About us</li>
<li>Services</li>
<li>Contact</li>
<li>Location</li>
<li>Why Groovy?</li>
</ul>
</nav>

[wonderboymusic]

I am not entirely sure how big or small this markup change is, I will defer to @helen

[DrewAPicture]

Feedback from @helen in Slack (logs linked above):

[My] desire to mess with the markup for the admin menu right now is zero, also curious what a11y thinks of it anyway.

Let's take a look at this in 4.3.

[afercia]

Sorry first time I see this ticket, we're covering this and more landmark roles to add in the admin in #31450. For reference, to support old Assistive Technologies and old browsers, it's still recommended to use DIVs so instead of

<nav role="navigation">

we're proposing

<div role="navigation" aria-label="Main menu"> 

In the future, it will be possible to use just <nav> which has an implicit role="navigation"

[SergeyBiryukov]

Duplicate of #31450.