Can't get to work when canvas has "transform: scale"

[robsonbramos]

I've been working on it for four straight days and so far I could not find an answer. Here it goes:
The plugin itself works as expected, but when the canvas has the style "transform: scale (2)", the mouse pointer is not detected correctly.

I've tried everything, I looked around all over stackoverflow for a solution, but to no success.

I wonder how you can use the plugin in conjunction with these css transforms.