[Webkit-unassigned] [Bug 222190] New: AX: Live region announcements are skipped by VoiceOver during view/focus changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222190

            Bug ID: 222190
           Summary: AX: Live region announcements are skipped by VoiceOver
                    during view/focus changes
           Product: WebKit
           Version: Safari 14
          Hardware: Mac (Intel)
                OS: macOS 10.15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cwalia at slack-corp.com
                CC: webkit-bug-importer at group.apple.com

**Overview:**

When a message is sent to a live region during a focus change, VoiceOver does not reliably announce the message.

**Steps to Reproduce:**

1. Open this Codepen: https://codepen.io/cw22/pen/YzpVzOW
2. Enable VoiceOver
3. Click the button to open the modal
4. Wait for VoiceOver to finish announcing context about the new view
5. **Issue**: Notice that the announcement “Modal has been opened” is not heard
6. Close the modal using “Escape” or “X”
7. VoiceOver Safari Issue: Notice that the announcement “Modal has been closed” is not heard

**Actual Result:**

"Modal has been opened" and "Modal has been closed" aria-live announcements are not read out by VoiceOver.

**Expected Result:**

Announcements should be read out by VoiceOver.

**Build Date & Hardware**

MacBook Pro (16-inch, 2019)
MacOS Catalina 10.15.7 (19H512)
Safari Version 14.0.2 (15610.3.7.1.10, 15610)

**Additional Builds and Platforms:**

- Firefox Mac OS: FAIL (VoiceOver)
- Chrome Mac OS: FAIL (VoiceOver)
- Chrome Windows: SUCCESS (JAWS & NVDA)
- Firefox Windows: SUCCESS (JAWS & NVDA)

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