JSFiddle - React, Tailwind, and code Playground

HTML

<video id="MediaStreamVideo" autoplay=""></video>

JavaScript

var stream;
var video = document.getElementById('MediaStreamVideo');

navigator.webkitGetUserMedia(
	{video: true, audio: true}, // Options
	function(localMediaStream) { // Success
		stream = localMediaStream;
		video.src = window.webkitURL.createObjectURL(stream);
	},
	function(err) { // Failure
		alert('getUserMedia failed: Code ' + err.code);
	}
);