stream canvas content to user

[Ken]

Hi, 

I would like to stream canvas (webgl h5 games) content to remote peer's,

Can easyRTC use easyrtc.buildLocalMediaStream method to build a non local media devices with new stream name then stream to remote user's?

or any solution.

sample code: 

var canvas = document.getElementById("canvas");
var stream = canvas.captureStream();
///
easyrtc.buildLocalMediaStream("canvas-content", stream.getAudioTracks(), stream.get​Video​Tracks());
easyrtc.call(userRtcId, onSuccess, onError, "canvas-content");

i tried this, will get some error:

Error Message:
Attempt to create a mediastream witout one to clone from

please assist.