source: Dev/trunk/src/client/dojox/io/tests/xhrPlugins.js

define(['doh', 'dojo/_base/kernel', 'dojo/_base/xhr', 'dojox/io/xhrPlugins', 'dojo/_base/url'], function(doh, dojo, xhr, xhrPlugins){

xhrPlugins.addCrossSiteXhr("http://cssupportingsite.com/"); // make sure the registry is setup
var url = dojo.moduleUrl("dojox.io", "tests/crossSite.php");
url = url.toString();

doh.register("dojox.io.tests.xhrPlugins", [
        function getLocal(t){
                var d = new doh.Deferred();
                var dfd = xhr("GET",{url:url});
                dfd.addCallback(function(result){
                        d.callback(result.match(/response/));
                });
                return d;
        },

        function crossSiteRequest(t){
                // Note: this isn't really testing much unless you are using IE8 (XDomainRequest) or a
                // browser that supports cross-site XHR (maybe FF3.1?)
                var d = new doh.Deferred();
                // persevere supports cross-site XHR so we can use it for cross-site testing for now
                xhrPlugins.addCrossSiteXhr("http://persevere.sitepen.com/");
                try {
                        var dfd = xhr("GET",{url:"http://persevere.sitepen.com/SMD"});
                }
                catch (e){
                        if(e.message.match(/No match/)){
                                return false; // this browser doesn't support this transport
                        }
                        throw e;
                }
                dfd.addCallback(function(result){
                        d.callback(result.match(/transport/));
                });
                // TODO: This should run off a fixed URL on some Dojo server.
                
/*              xhrPlugins.addXdr("http://dojotoolkit.org/...");
                xhrPlugins.addCrossSiteXhr("http://dojotoolkit.org/...");
                                
                var dfd = xhr("GET",{url:"http://dojotoolkit.org/.../dojox/io/tests/crossSite.php"});
                dfd.addCallback(function(result){
                        d.callback(result.match(/response/));
                }); */
                return d;
        },
        function proxiedRequest(t){
                var d = new doh.Deferred();
                xhrPlugins.addProxy(url+"?url=");

                var dfd = xhr("GET",{url:"http://someforeignsite.com/SMD"});
                dfd.addCallback(function(result){
                        d.callback(result.match(/proxied/));
                });
                return d;
        }
]);

});