new JSMpeg.Player error: Failed to get WebGL ctx

[xladykiller]

the code

var screen = document.getElementById('screen');
player = new JSMpeg.Player('aus.ts', {
			canvas: screen,
		});

in mac book, chrome:

Uncaught Error: Failed to get WebGL Context
    at new WebGLRenderer (jsmpeg.min.js:2)
    at new Player (jsmpeg.min.js:1)
    at (index):93
WebGLRenderer @ jsmpeg.min.js:2
Player @ jsmpeg.min.js:1
(anonymous) @ (index):93

[xladykiller]

when i add "disableGl": true in options，it works