HTML5 paste image to page

Did you know that HTML5 lets the user paste an image into the DOM tree? See a demo here and find the code needed in this Gist. I first came across this code here in a post HTML5 JavaScript Pasting Image Data in Chrome by Daniel X Moore (from 2011!).
Instructions: Copy an image to clipboard (For instance: Mac: cmd+shift+ctrl+4 and Win: Alt+PtrScr), click on the target div to paste the image into, and paste cmd+V or ctrl+v.
Version 1.1 Added camera snapshoot sound on paste - use my pen Snapshoot sound - snapshoot() to get that feature on your pens. Also added option to toggle background-size: contain when clicking on pasted image.

The dataURL of the image copy to clipboard.