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Firefox navigator.mediaDevices.getUserMedia stream is correct on the first run, on the second run stream is broken and I cannot display video

I'm having trouble accessing the microphone and camera while using Firefox on windows after running this script on the second time. Chrome/edge is fine

      let stream;

      try {
        document.getElementById('record').onclick = async () => {
          stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: true});
          document.getElementById('video').srcObject = stream;
        };
        document.getElementById('stop').onclick = () => {
          stream.getTracks().forEach(track => track.stop());
          document.getElementById('video').srcObject = undefined;
          stream = null;
        };
      } catch (e) {
        console.error(e);
      }

On the second go stream seams to be legit, it contains video and audio track, but it won't display video correctly whereas chrome and safari deals with it without any issues. Should I treat firefox in a specific way? What could be wrong? I'll add that my camera & microphone is fine + I've granted the permissions

fiddle link to the example code

Closing and reopening browser seam to make the issue go away, until I run that script again. Thanks in advance

Via Active questions tagged javascript - Stack Overflow https://ift.tt/sdEiSQZ
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