Cannot invoke method (X) on NullVideoAPI

API
2

Not getting any errors from the function calls, but it looks like there is an issue setting the volume property. Here’s the error it’s throwing:
https://i.gyazo.com/750d0f9f008c5d77e39d24b7db2794bc.png

<html>
  <body onload="setPlayer()">
	<script src= "http://player.twitch.tv/js/embed/v1.js"></script>
	<div id="player"></div>
	<script type="text/javascript">
		var options = {
			width: 1020,
			height: 760,
			channel: "cohhcarnage"
		};
		var player = new Twitch.Player("player", options);
		
		function setPlayer(){
			player.setMuted(true);
			player.setVolume(0.1);
			player.setQuality("360p");
		}
	</script>
  </body>
</html>