[Webkit-unassigned] [Bug 230408] New: AX: iOS VoiceOver doesn't correctly announce expanded state of details element if summary has display: inline-block

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230408

            Bug ID: 230408
           Summary: AX: iOS VoiceOver doesn't correctly announce expanded
                    state of details element if summary has display:
                    inline-block
           Product: WebKit
           Version: Safari 14
          Hardware: iPhone / iPad
                OS: iOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: oliver.byford at digital.cabinet-office.gov.uk
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

Given a details element where the summary is set to `display: inline-block`:

```
<details>
  <summary style="display: inline-block;">Summary</summary>
  <p>Content</p>
</details>
```

1. Activate VoiceOver on iOS
2. Swipe to 'Summary'
3. Double tap to expand the details element
4. Swipe forwards to the expanded content
5. Swipe back to 'Summary'

Expected result:
In step 3, after expanding the element , VO should announce 'Summary, expanded'
In step 5, when swiping back to the summary, VO should announce 'Summary, expanded'

Actual result:
In step 3, after expanding the element , VO announces 'Summary, collapsed'
In step 5, when swiping back to the summary, VO announces 'Summary'

This issue does not occur if the summary element is set to `display: inline-block` or the user-agent default `display: list-item`.

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