[Webkit-unassigned] [Bug 217606] New: Web Audio broken on iOS 14 after switching app

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217606

            Bug ID: 217606
           Summary: Web Audio broken on iOS 14 after switching app
           Product: WebKit
           Version: Safari 13
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Major
          Priority: P2
         Component: Web Audio
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ashley at scirra.com
                CC: cdumez at apple.com

Demo URL: https://downloads.scirra.com/labs/ios14audio/standard/index.html

Steps to reproduce:
1. Press button and verify a sound can be heard
2. Go to the home screen
3. Switch back to Safari so the page is showing again
4. Press the button again

Observed result:
Audio no longer plays.

Expected result:
Audio to continue playing.

It looks like all our JavaScript code is running as expected, and the AudioContext state is still "running" after switching back to the app, but no audio playback happens. So it appears to be a regression in iOS 14. This affects all web content made in Construct 3 (www.construct.net).

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