<!doctype html>
<html>
<head>
<script>
(async () => {
let stream = await navigator.mediaDevices.getUserMedia({video: true, audio: true});
audio.srcObject = new MediaStream(stream.getAudioTracks());
video.srcObject = new MediaStream(stream.getVideoTracks());
})();
</script>
</head>
<body>
<audio id="audio" controls autoplay></audio><br>
<video id="video" width="160" height="120" controls autoplay></video>
<div id="div"></div>
</body>
</html>