[Webkit-unassigned] [Bug 231365] New: Returning to a black screen with peer connection after backgrounding Safari

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Oct 7 09:37:27 PDT 2021


https://bugs.webkit.org/show_bug.cgi?id=231365

            Bug ID: 231365
           Summary: Returning to a black screen with peer connection after
                    backgrounding Safari
           Product: WebKit
           Version: Safari 15
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: vfarley at nvidia.com
                CC: youennf at gmail.com

After setting up a RTCPeerConnection in Safari 15, if you switch to another application and then return back to the website, the video screens are black.  This behavior can be seen on the https://webrtc.github.io/samples/src/content/peerconnection/pc1/ sample page.

The steps to reproduce this bug are:
1. Open https://webrtc.github.io/samples/src/content/peerconnection/pc1/ 
2. Click the "Start" button, allow microphone and camera access when prompted, then press the "Call" button
3. Switch to another application for 3-5 seconds
4. Return to the Safari and observe that both video screens are black 

Expected behavior: After backgrounding Safari and coming back, video resumes. 

Able to reproduce with iOS 15.1 beta. Unable to reproduce with iOS 15.0.

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