177126 2017-09-19 01:01:54 -0700 getUserMedia fails with an OverConstrainedError when no devices are found 2017-09-19 09:25:47 -0700 1 1 1 Unclassified WebKit WebRTC Safari Technology Preview All Unspecified NEW InRadar P2 Normal --- 1 tkbremnes webkit-unassigned eric.carlson jonlee webkit-bug-importer youennf oldest_to_newest 1350269 0 tkbremnes 2017-09-19 01:01:54 -0700 If no devices are detected (MediaDevices.enumerateDevices responds with an empty array), the MediaDevices.getUserMedia fails with a OverConstrainedError. This can happen if the webcam for some reason fails (happens from time to time on MacOS), or always in the case of the iOS Simulator. According to the specs, it should have failed with a NotFoundError – OverConstrainedError should happen when the available devices are not able to fulfill the constraints set (e.g. resolution). 1350311 1 youennf 2017-09-19 08:30:41 -0700 I wonder whether there is a fingerprinting issue here, probably not big in practice. 1350340 2 webkit-bug-importer 2017-09-19 09:25:47 -0700 <rdar://problem/34518610>