title: Checking OS mic mute from javascript (MediaRecorder's track.muted doesn't seem to work)
body: <p>I'm trying to detect mic mute from the OS in javascript. I am using MediaRecorder APIs to record the audio. I see a muted object present in the MediaRecorder's media track but it is not changing when I mute the mic from my keyboard shortcut(at OS level). Is there any way to detect this?
  Thanks in advance.</p>
  <p>current code:</p>
  <pre><code>track.getAudioTracks()[0].muted
  </code></pre>
  <p>In my case it stays true in chrome and false in firefox all the time.</p>
  <p>(I've seen some of the questions related to this but none seem to answer it)</p>