How do I get the XMLHttpRequest objects send method to duplicate the above HTTP stream?
i am confuse about the onload event that you specified, it is on the page or on iframe?, the first answer is correct theres no way to do this using purely xmlhttprequest, if what you want to acheive is triggering some method once the response exist on iframe, simply check if it has content already or not using DOM scripting, then fire the method.
