Node Crossdomain Proxy is extremely simple Node.js proxy. It just adds Access-Control-Allow-Origin: * for XHR. I used it for Windows Azure Storage Blob mirroring.
Make request url like this:
http://proxy url/?src=file you want to request
Note: use file url without http://.
This code is licensed under WTFPL license. If you're tired with Windows Azure or something else - or if you're not - you can use my source freely, in any project. see LICENSE for more information.