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Cross-Domain AJAX for IE8 and IE9

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:


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

// GET
$.getJSON('').done(function(data) {

  url: '',
  data: 'this is data being posted to the server',
  contentType: 'text/plain',
  type: 'POST',
  dataType: 'json'
}).done(function(data) {


This script is hosted by CDNJS:

Change log

  • 1.0.2 - added RequireJS AMD module support
  • 1.0.3 - added CommonJS and Bower support
  • 1.0.4 - support protocol-relative URLs, use peerDependencies in package.json