Turn off webcam/camera after using getUserMedia [duplicate]

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localstream.stop() has been depreciated and no longer works. See this question and answer:
Stop/Close webcam which is opened by navigator.getUserMedia

And this link:

https://developers.google.com/web/updates/2015/07/mediastream-deprecations?hl=en#stop-ended-and-active

Essentially you change localstream.stop() to localstream.getTracks()[0].stop();

Here’s the source in the question updated:

<html>
<head>
<script>
var console = { log: function(msg) { div.innerHTML += "<p>" + msg + "</p>"; } };

var localstream;

if (navigator.mediaDevices.getUserMedia !== null) {
  var options = { 
    video:true, 
    audio:false 
  };  
  navigator.webkitGetUserMedia(options, function(stream) { 
    vid.src = window.URL.createObjectURL(stream);
    localstream = stream;
    vid.play();
    console.log("streaming");
  }, function(e) { 
    console.log("background error : " + e.name);
  }); 
}

function vidOff() {
  //clearInterval(theDrawLoop);
  //ExtensionData.vidStatus="off";
  vid.pause();
  vid.src = "";
  localstream.getTracks()[0].stop();
  console.log("Vid off");
}
</script>
</head>
<body>
<video id="vid" height="120" width="160" muted="muted" autoplay></video><br>
<button onclick="vidOff()">vidOff!</button><br>
<div id="div"></div>
</body>
</html>

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