SECURITY_ERR: DOM Exception 18 on using getImageData in a Chrome Extension

Question

I\'m writing my first Chrome extension. I\'m trying to use jQuery and the jQuery Image Desaturate plugin to desaturate an image on a page on http://www.flickr.com.

I

Answer 1

So I too was working on an extension where I wanted to use image data from cross-domain acquired images and I found that IT IS POSSIBLE! (without any funky background page message passing)

@Serg, As it turns out, in web pages you can't do cross-domain stuff, however, after some further digging however, I found that in chrome extensions, you can!

The jist of it is, all you have to do is request permissions for Cross-Origin XMLHttpRequests in your manifest.

{
  "name": "My extension",
  ...
  "permissions": [
    "http://www.google.com/"
  ],
  ...
}

For more info (especially about how to remain secure) read this.