WebGl conflicts with RetinaSupport!

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from Andrea:
Firefox on Windows : WebGl Error

also reproduced on iexplore 11 on windows tablet and Chrome/firefox on my Android phone.

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seems to be a conflict with RetinaSupport. As a workaround I disabled RetinaSupport for now see commit

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tying to dig deeper but lacking a real retina device (such as apple's) where retina support makes any sense. The only device I currently have that reports retina support is my android phone. As soon as I enable retina support there, three.js fails to create a WebGL context (no matter which version of three.js)