Implements automatic Cross Origin Resource Sharing support using the XDomainRequest object for IE8 and IE9 when using the ajax function in jQuery 1.5+.

CORS requires the Access-Control-Allow-Origin header to be present in the AJAX response from the server.

In order to use XDomainRequest in Internet Explorer, the request must be:

• Only GET or POST
• When POSTing, the data will always be sent with a Content-Type of text/plain
• Only HTTP or HTTPS
• Protocol must be the same scheme as the calling page
• Always asynchronous

Working example here: http://jsfiddle.net/MoonScript/Q7bVG/show/

With at least jQuery version 1.5, just include this jQuery.XDomainRequest.js script into your page, then make your AJAX call like you normally would:

$.ajax({
  url: 'http://jsonmoon.jsapp.us/',
  dataType: 'json'
}).done(function(data){
  console.log(data.name.first);
});

This script is hosted by CDNJS: http://cdnjs.cloudflare.com/ajax/libs/jquery-ajaxtransport-xdomainrequest/1.0.0/jquery.xdomainrequest.min.js