Internet Explorer - Unspecified error in WebGL renderer

IE 11 raises an Unspecified Error when using the WebGL renderer.

The error occurs in updateBoundRect:
https://github.com/anvaka/VivaGraphJS/blob/master/src/WebGL/webglInputEvents.js#L164

Reason seems that root.getBoundingClientRect() is called before the root (canvas) element is added to the container element.

Calling init before running the renderer serves as a workaround:
var graphics = Viva.Graph.View.webglGraphics();
graphics.init(container);

The run() sequence might need to be corrected.

Start in src/WebGL/webglInputEvents.js at updateBoundRect and trace the renderer run sequence that invokes it. Reproduce the issue in Internet Explorer 11 with the WebGL renderer, comparing the failing sequence with the documented graphics.init(container) workaround. Done means the renderer no longer raises the unspecified error when run normally.

Written by the indexing model from the issue text.