.width and .height don't work with webgl-2d canvas ?

[BuzzBuzz]

Hello
I am trying to use webgl-2d instead of my usual canvas but I get a size problem.
I define .width and .height for resolution and .style.width and .style.height for size on screen. But with webgl-2d, the canvas is small in the bottom left corner.
Is there a specific way to give webgl-2d canvas their size ?

[codeimpossible]

i know this is a really old issue, but for anyone else interested: calling viewport() after webgl2d is enabled with the new dimensions worked for me.

if (this.canvas.gl2d) {
  var gl2d = this.canvas.gl2d;
  var gl = gl2d.gl = gl2d.canvas.$getContext("experimental-webgl");
  gl.viewport(0, 0, this.canvas.width, this.canvas.height);
}