scottcheng/cropit — pull request #19 by javiermarinros (2014-10-15 10:59:14+00:00)
Title: Fill BG when saving transparent images as jpg

Added option to set a fill background when the source image is transparent. Without this, the final image will have a black background (although its depend on the browser).

Sorry I don't know CoffeeScript, I implemented it on the final JS, but I think it shouldn't be difficult to translate to CoffeeScript.