Bug 293949 – OverconstrainedError in getUserMedia on iOS 18.1 Simulator

• Component: WebRTC
• Status: RESOLVED FIXED

[milen]

I'm testing an app in iOS 18.1 Simulator, iPhone 16.

1) Call `await navigator.mediaDevices.enumerateDevices()`. Returns two input devices:

InputDeviceInfo {deviceId: "", kind: "audioinput", label: "", groupId: "", …}
InputDeviceInfo {deviceId: "", kind: "videoinput", label: "", groupId: "", …}

2) Call `stream = await navigator.mediaDevices.getUserMedia({video: true})` This fails with the following error:

OverconstrainedError {message: "Invalid constraint", constraint: "", name: "OverconstrainedError"}

3) Call `stream = await navigator.mediaDevices.getUserMedia({audio: true})`.
The user grants microphone access. The call succeeds and returns a stream. No errors.

4) Call `await navigator.mediaDevices.enumerateDevices()`. Returns ONE input device:

InputDeviceInfo {deviceId: "18D5FE168D21164D9C4ED78C74A6A6D2A572513C", kind: "audioinput", label: "MicrophoneBuiltIn", groupId: "FD080DBDD6AA6F6F23AE94E8627078192F0F58C3", …}


Expected behavior:
If no camera is available, then enumerateDevices() should not return a device of kind "videoinput".

[Alexey Proskuryakov]

Thank you for the report! Does this reproduce with the latest simulator?

[milen]

I tested it on the latest iOS 18.5 Simulator, iPhone 16, and the result remains the same.

[Radar WebKit Bug Importer]

<rdar://problem/152938326>

[youenn fablet]

Pull request: https://github.com/WebKit/WebKit/pull/46594

[EWS]

Committed 296083@main (22a5e4f2aa67): <https://commits.webkit.org/296083@main>

Reviewed commits have been landed. Closing PR #46594 and removing active labels.