Here's a chart of the browsers that support CORS: http://caniuse.com/cors http://caniuse.com/cors Definitely a bit spotty. It's good for my use-case, which is

Here's a chart of the browsers that support CORS: http://caniuse.com/cors http://caniuse.com/cors Definitely a bit spotty. It's good for my use-case, which is Firefox, and Chrome, extension development.