[Webkit-unassigned] [Bug 243258] New: Cannot resume MediaSession from PWA after 5sec pause

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=243258

            Bug ID: 243258
           Summary: Cannot resume MediaSession from PWA after 5sec pause
           Product: WebKit
           Version: Safari 15
          Hardware: iPhone / iPad
                OS: iOS 15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: michael at mrosenberg.pub

Created attachment 461254

  --> https://bugs.webkit.org/attachment.cgi?id=461254&action=review

A screencap demonstrating the bug

If you have a MediaSession from and add-to-homescreen PWA that has been backgrounded and paused for 5sec, you cannot resume the audio.

Steps to reproduce:
1. In iOS Safari, navigate to https://readtomyshoe.mrosenberg.pub
2. Click Share -> Add to Home Screen -> Add
3. Open the ReadToMyShoe app
4. Click the "+" button next to any article to add it to your queue (this might take a second because it has to download a few megabytes of audio)
5. Click the play button next to the article in the queue
6. Navigate away from the app, e.g., by going to home
7. From the Notification Center, pause playback
8. Wait 5 seconds, then click play

The audio should fail to resume. Retrying play-pause does not help. I've attached a screencap of the bug.

OS: iOS 15.6

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