HumbleSoftware/js-imagediff — pull request #39 by Brootux (2014-07-28 11:43:34+00:00)
Title: Included workaround for error 'Image given has not completed loading'...

... of canvas-library. The error was happening when working with lots of images to compare.

Found workaround here: Automattic/node-canvas#254

Comparing now works for me. Hope this helps anybody.