Asynchronous cross-domain POST request via JavaScript?

Question

I could just create a form and use that to do a POST request to any site, thing is the FORM method isn\'t asynchronous, I need to know when the page has finished loading. I

Answer 1

If the data returned from the cross domain post is JSON, then you can dynamically add a script tag pointing to the URI that returns the data. The browser will load that "script" which then you can access from other javascript.