Is there any update on getUserMedia / Stream
navigator.mediaDevices.getUserMedia(
{ audio: false,
video: {facingMode: { exact: "environment" },
width: 420, height: 1000 } })
.then(function(stream) {
	var video = document.querySelector('video');
	// Older browsers may not have srcObject
	if ("srcObject" in video) {
		video.srcObject = stream;
	} else {
		// Avoid using this in new browsers
		video.src = window.URL.createObjectURL(stream);
	}
})
.catch(function(err) {
	console.log(err.name + ": " + err.message);
});
It doesn't wor on IPhone only