[Webkit-unassigned] [Bug 256302] New: AX: aria-describedby not announced with role=radiogroup

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=256302

            Bug ID: 256302
           Summary: AX: aria-describedby not announced with
                    role=radiogroup
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: diegopc86 at gmail.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

Created attachment 466205

  --> https://bugs.webkit.org/attachment.cgi?id=466205&action=review

role=radiogroup with aria-describedby example

Consider an element with role=radiogroup and that defines aria-label and aria-describedby, and has a list of input[type=radio].

In Safari, once the focus lands on the first input, then VO gives this announcement:

> <label of the input>, radio button, 1 of X, <aria-label value of the group>, radio group

The value of `aria-describeby` is ignored by VO.

In comparison, this is how NVDA and JAWS announce the same elements in Edge:

- NVDA
> <aria-label value of the group> grouping <aria-describedby of the group>
> <label of the input> radio button not checked 1 of X

- JAWS
> <aria-label value of the group> group - <aria-describedby of the group>
> <label of the input> radio button - not checked - 
> 1 of X

It can be verified in the codepen example slightly modified taken from the WAI ARIA example section of Radio Group Pattern page:
https://codepen.io/diegocardoso/pen/OJBxEvX

Also added a smaller example where the issue can be reproduced.

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