It also seems that on iOS devices, the scroll bar does not appear in the iframe, and so it automatically resizes itself to the required height (width is not affected) to fit all of the page information.
This is a real problem, since when you want to scroll down, it causes some really weird canvas issues with the layout, since inherently the webGL canvas can't scroll or zoom in iOS... at least not that I can figure out.
The only way I can find around this, is to use a completely different method (instead of an iframe) for people on iOS... but the iframe is the nicer solution if only it would stay the size it's supposed to be and not screw up the rest of the page :/
Also, I'm not sure what happened to JesseJoh... don't think he's coming back any time soon. :(