[Webkit-unassigned] [Bug 206525] New: audio in iframe can not be restarted in lockscreen

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=206525

            Bug ID: 206525
           Summary: audio in iframe can not be restarted in lockscreen
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: iOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jonathan at radio.garden

If I play an audio element containing an mp3 stream in an iframe and go the lockscreen, I am unable to play it again after having paused it

Steps to reproduce:
1 - on an iphone in safari play an audio element in an iframe (example: https://ccfhs.csb.app/ )
2 - lock the phone
3 - in the lock screen press the pause button to pause the stream
4 - pressing the play button to start the stream again
5 - even though the play button turns into a pause button, the audio never starts playing
6 - when you go back to safari, you see a pause button in the audio element, but the stream does not start playing.. even when toggling the pause button, the stream never starts playing again

Source code of example: https://codesandbox.io/s/priceless-waterfall-ccfhs

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