[Webkit-unassigned] [Bug 211829] New: WebRTC Audio fail to capture from lock screen in Safari

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=211829

            Bug ID: 211829
           Summary: WebRTC Audio fail to capture from lock screen in
                    Safari
           Product: WebKit
           Version: Safari 13
          Hardware: iPhone / iPad
                OS: iOS 13
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cenweituan at gmail.com
                CC: youennf at gmail.com

Steps to reproduce:

1. On an iPad, go to https://webrtc.github.io/samples/
2. Lock the screen manually and wait for 5 seconds
3. Unlock the screen and select sample "Audio-only getUserMedia() output to local audio element" from the tab.
4. Make a pop sound and you can't hear yourself.
5. Refreshing the page you can't still hear the sound. Only after you restart safari or manually open a new tab with "Audio-only getUserMedia() output to local audio element", the sound will work for you.

It's happening on iPad with IpadOs 13.2.2 and iPhone 6s with IOS13.3.1

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