Doesn't work for me unfortunately, I see no textures and a lot of errors like this:

WebGL: INVALID_VALUE: texImage2D: width or height out of range

[.WebGLRenderingContext]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering or is not 'texture complete'

This is on a retina MacBook Pro. I guess there's some hw incompatibility there.