check for cross-origin error when accessing image data
check for cross-origin error when accessing image data

walterbender/turtleblocksjs,rodibot/turtleblocksjs,rodibot/turtleblocksjs,walterbender/turtleblocksjs,i5o/turtleblocksjs,garyservin/turtleblocksjs,i5o/turtleblocksjs,tradzik/turtleblocksjs,rodibot/turtleblocksjs,walterbender/turtleblocksjs,tradzik/turtleblocksjs,i5o/turtleblocksjs,garyservin/turtleblocksjs,garyservin/turtleblocksjs,tradzik/turtleblocksjs