camera component not stopping streams when detaching

zk.afterLoad('zkmax.med', function() {
	var xCamera = {};
	zk.override(zkmax.med.Camera.prototype, xCamera, {
		unbind_: function() {
			var video = this.$n('real');
			var stream = video.srcObject;
			if(stream) {
				stream.getTracks().forEach(function(track) {
					track.stop();
				});
				video.srcObject = null;
			}
			xCamera.unbind_.apply(this, arguments);
		}
	});//zk.override
});//zk.afterLoad