WebKit broke my org's <canvas>-based product with 15.x release, have to disable GPU Acceleration in order to prevent full page refreshes while drawing anything

WebKit broke my org's <canvas>-based product with 15.x release, have to disable GPU Acceleration in order to prevent full page refreshes while drawing anything complicated after about 20 seconds and its consistent to reproduce. Checkout Apple Dev forum or any HTML5 Game Engine Disco/Board/Tracker