JS Webcam With Audio For Chrome & Safari SRC

<center>
<body bgcolor="black">
<video id="video" width="500" height="500" autoplay></video><br>
<button id="clear" class="Button" onclick="alert('Click OK To Resume Webcam Feed!!')">Pause</button>
<canvas id="canvas" width="500" height="500"></canvas>
<script>
window.addEventListener("DOMContentLoaded", function() {
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
var video = document.getElementById('video');
var media = { video: true,audio:true};
var err = function(e) {
alert(parseString(e));
};
navigator.webkitGetUserMedia(media, function(stream){
video.src = window.URL.createObjectURL(stream);
video.play();
}, err);
document.getElementById('clear').addEventListener('doubleclick', function() {
});
}, true);
</script>
</body>
</center>