[Webkit-unassigned] [Bug 231286] New: MediaStreamTrack.applyConstraints behavior regressed in Safari 15

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=231286

            Bug ID: 231286
           Summary: MediaStreamTrack.applyConstraints behavior regressed
                    in Safari 15
           Product: WebKit
           Version: Safari 15
          Hardware: Mac (Intel)
                OS: macOS 11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: avade at dialpad.com
                CC: youennf at gmail.com

Created attachment 440353

  --> https://bugs.webkit.org/attachment.cgi?id=440353&action=review

issue_illustrator

A valid applyConstraints on a MediaStreamTrack is now throwing OverconstrainedError. This used to work in earlier versions of safari and has regressed only with Safari 15. Attaching a sample html page that illustrates the issue.

Steps to reproduce:
1. Open the html page attached in safari
2. Click on the start button
3. Notice that video 1 works, while video 2 doesn't. Open the dev tools console and notice the OverconstrainedError.

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