Go to https://jsfiddle.net/knx8d42z/ and click on all buttons (play, capture, recapture). At that point, after recapture, audio is not playing but controls show audio is playing. Toggle controls off and on show audio is not playing. This also shows up with camera and microphone.
<rdar://problem/124207928>
jsfiddle with src: https://jsfiddle.net/mk8c4zof/