Cross-Origin Resource Sharing (CORS) for jQuery for IE8+

jquery.cors.js

$.ajaxTransport("+*", function( options, originalOptions, jqXHR ) {

    if(jQuery.browser.msie && window.XDomainRequest) {

        var xdr;

        return {

            send: function( headers, completeCallback ) {

                // Use Microsoft XDR
                xdr = new XDomainRequest();

                xdr.open("get", options.url);

                xdr.onload = function() {

                    if(this.contentType.match(/\/xml/)){

                        var dom = new ActiveXObject("Microsoft.XMLDOM");
                        dom.async = false;
                        dom.loadXML(this.responseText);
                        completeCallback(200, "success", [dom]);

                    }else{

                        completeCallback(200, "success", [this.responseText]);

                    }

                };

                xdr.ontimeout = function(){
                    completeCallback(408, "error", ["The request timed out."]);
                };

                xdr.onerror = function(){
                    completeCallback(404, "error", ["The requested resource could not be found."]);
                };

                xdr.send();
          },
          abort: function() {
              if(xdr)xdr.abort();
          }
        };
      }
    });