title: Crossdomain request from https to http with callback. And vice versa
body: <p>Before talk I just made it by Flash. When on server side (https) put special file  (crossdomain.xml), and Flash part on http server. Of course they are different domain in https and http server parts. It isn't hard because I owner both servers.
  But I wonna make it without Flash. By JS/XHR. Or by PHP/curl?
  Is it possible?
  Thanx!</p>