title: Is it possible broadcast audio with screensharing with WebRTC
body: <p>is it possible broadcast audio with screensharing with WebRTC?
  Simple calling <code>getUserMedia</code> with <code>audio: true</code> fails by permission denied error.
  Is there any workeround which could be used to broadcast audio also?
  Will be audio implemented beside screensharing?</p>
  
  <p>Thanks.</p>