NotReadableError: Failed to allocate videosource

Question

I get this error in Firefox 51 when I try to execute the following code and when I select my laptop\'s camera:

navigator.getMedia = (navigator.getUserMedia |         


        

Answer 1

Can someone elaborate what this means? Is my webcam broken? I used it from the script just yesterday without problems. It's not allocated to other application.

I've encountered exactly the same issue!

Shame on me! Because, in the meantime I'd added a beforeunload event, including the event.preventDefault as reported in the example.

After removing this event.preventDefault, everything worked fine - as expected.