[Webkit-unassigned] [Bug 259924] New: REGRESSION (iOS 17 Beta): Incoming and outgoing video and audio are lost when iOS User navigates to Youtube and back, call becomes broken

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=259924

            Bug ID: 259924
           Summary: REGRESSION (iOS 17 Beta): Incoming and outgoing video
                    and audio are lost when iOS User navigates to Youtube
                    and back, call becomes broken
           Product: WebKit
           Version: Safari 17
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: madara.freimane at testdevlab.com
                CC: youennf at gmail.com

Summary:
REGRESSION (iOS 17 Beta): Incoming and outgoing video and audio are lost when iOS User navigates to Youtube and back, call becomes broken

Tested devices:
Bug is reproducible on:
- iPhone 11 Pro Max (iOS 17 Developer Beta 4, build: 21A5291j) and Safari
- iPhone 11 Pro Max (iOS 17 Public Beta, build: 21A5277j) and Safari

Bug is not reproducible on:
- iPhone 13 (iOS 16.6) and Safari
- iPhone 14 (iOS 16.5.1) and Safari

Use case:
Precondition:
User is in active WebRTC call
Permissions for camera and microphone are set to "Ask" in browser settings

Steps:
1. iOS User navigates to Yotube and tries to listen some songs/video
2. iOS User navigates back to the browser after ~1min

Actual result:
- Incoming and outgoing video and AUDIO are lost when iOS User navigates to Youtube and back
- Sometimes the iOS 17 User is not able to  play a song/video in the Youtube/Spotify or another appp where we can listen an audio/watch the video. If iOS User navigates between videos/songs, it is possible to play a music somehow.

Expected result:
Incoming and outgoing video and audio recovers after the navigation to Youtube/another app and back

Reproducibility:
80%

Additional information:
-Sysdiagnostics file added:
https://drive.google.com/file/d/1KOvDMHjoOnLjMB55Wh8Oe0lUjkDHmv01/view?usp=sharing 
(defect reproduced on 08.08.23 at 11:50 EET)
-The bug is similar that was at the beginning with iOS 16:
https://bugs.webkit.org/show_bug.cgi?id=243982

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