Would it be possible to use this to render the current state of a canvas to the console? That's something I'd find very useful for debugging.

Edit 1: Looks like they build the memes exactly that way. It still needs to convert the canvas to a data: url first, however, which might be a bit slow?

Edit 2: Looks like there might be a better, but non-standard and non-portable way of achieving that in WebKit browsers: http://updates.html5rocks.com/2012/12/Canvas-driven-backgrou...