WebView v3.3.17 aria-live repeated twice

Vega Open Beta Bug Reports
1

:backhand_index_pointing_right: Bug Description

1. Summary

There is a bug in Amazon Vega WebView v3.3.17 where content inside an aria-live region is announced twice. This is reproducible with a minimal standalone HTML page .

Bug Severity
Select one that applies

  • Impacts operation of app
  • Blocks current development
  • Improvement suggestion
  • Issue with documentation (If selected, please share the doc link and describe the issue)
  • Other

2. Steps to Reproduce

  1. Create a simple HTML page containing an aria-live region.

  2. Load that page inside Amazon Vega WebView v3.3.17.

  3. Trigger an update to the live region after initial page load.

3. Observed Behavior

When the aria-live region updates, the same message is announced twice instead of once.

4. Expected Behavior

When the aria-live region updates, the new content should be announced exactly once.

4.a Possible Root Cause & Temporary Workaround

This appears to be a bug in the currently public Vega WebView v3.3.17 package.
We currently have no workaround right now, except waiting for a new version of WebView to fix this issue.

5. Logs or crash report

N/A

6. Environment

  • SDK Version: Active SDK Version: 0.22.6759
    Vega CLI Version: 1.2.22

7. Example Code Snippet / Screenshots / Screengrabs

N/A

:backhand_index_pointing_right: Playback Issues

N/A

:backhand_index_pointing_right: Additional Context

Since newer WebView versions are expected in Vega v0.23, WebView upcoming update, we would like to confirm whether this accessibility issue is already known/fixed in the upcoming release, thanks!

3

Hi @lamoule,

Thank you for reporting this. The aria-live double-announcement issue on WebView v3.3.17 is noted.

A couple of follow-up questions to help us investigate:

  1. Could you share the minimal HTML page you mentioned that reproduces this?
  2. Is this happening with both aria-live=“polite” and aria-live=“assertive”, or only one?
  3. Which screen reader/accessibility service is active when you observe the double announcement? (VoiceView?)

Regarding your question about v0.23 - I’m checking internally whether this is addressed in the upcoming WebView update and will confirm.

Warm Regards,
Ivy

4

Hey @Ivy thanks for the quick reply!

  1.  

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>aria-live test</title>
</head>
<body>
<div aria-live="assertive" id="log"></div>
<script>
document.getElementById('log').textContent = 'this text will be said twice';
</script>
</body>
</html>
  1. This is happening with either polite or assertive.
  2. This is using VoiceView on FireStick Select 4K