@Sventevith : Unless I make a mistake, it is enabled on the main browsers and node webkit and crosswalks IF the webGL is active. It is automatically done by C2 without you having to worry about it normally
Not possible on cocoonJS I think though.
And that is why you shall respect the bug reports guidelines, not only giving a capx is making the bug reproductible in one click in a situation they can work with (less time wasted trying to reproduce vague instructions) but also it helps filtering false positives.
Game design is all about decomposing the core of your game so it becomes simple instructions.