This test should fail. You should get a message about not being able to load a cross-domain package (after about 5 seconds). If you click on the Test Button, nothing should happen since dojo.event.connect() won't be run.
IMPORTANT: Change the domain name in the source of this file to be the domain name that you want to test. You can change the paths too. In this file, /dojo/noxd refers to a dojo installation that has not run the xdgen build command to build cross-domain compatible packages.