[Webkit-unassigned] [Bug 277268] New: AX: VoiceOver doesn't announce position of input[type="radio"] in shadow Doms

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=277268

            Bug ID: 277268
           Summary: AX: VoiceOver doesn't announce position of
                    input[type="radio"] in shadow Doms
           Product: WebKit
           Version: Safari 17
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: arun1411999 at gmail.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

I have a fieldset as radiogroup in a web component named `<simple-fieldset>`
And I have input[type="radio"] in another web component named `<simple-input>`

If I write ,
 <simple-fieldset>
<simple-input></simple-input>
<simple-input></simple-input>
</simple-fieldset>

When I focus on first radio input, voiceover should announce as 'radio button 1 of 2' and when I focus on second radio input, voiceover should announce as 'radio button 2 of 2'.

But it always announces 'radio button 1 of 1' for both the radio inputs. But the same scenario works fine with NVDA and narrator.

It is working fine in voiceover without shadow boundaries. 

Additional Info : If I wrap the input[type="radio"] with a <div role="radio"></div> and gave role as radio, it works fine. It seems it always avoid the input[type="radio"] to the group across shadow boundaries. If radiogroup and radio role will not work across shadow boundaries, then it should not have worked for the div with role radio.

I have provided all the three scenarios (here)[https://stackblitz.com/edit/vitejs-vite-t7rn2h?file=src%2Fmain.ts,src%2Finput.ts]
1) fieldset in a different shadow root and input[type="radio"] in a different shadow root => doesn't works
2) both fieldset and input[type="radio"] in same shadow DOM => works
3) fieldset in a different shadow root and input[type="radio"] in a different root but, input is wrapped with a div of role as radio => works

Please help me in this

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