Posted at May 25, 2010 by Nicholas C. Zakas Tags: Ajax, CORS, JavaScript, XDomainRequest, XDR, XHR, XMLHttpRequest A couple of years ago, web developers were banging their head against the first wall in Ajax: the same-origin policy. While we marveled at the giant step forward enabled by cross-browser support for the XMLHttpRequest object, we quickly bemoaned the fact that there was no way to make