Can I use the XmlHttpRequest cross site in iTunes LP?

Question

Itunes is based on the Webkit platform, and we cannot use cross-site XmlHttpRequest in JavaScript due to security policies. But, as an exception, we can do this with a special heading. Here is the source code, and I did it successfully in Safari:

var url = 'http://mysite.net/canvas.php';   

var mybody = "<?xml version='1.0' charset='utf-8'?><person><name>Arun</name></person>";
var http = new XMLHttpRequest();

http.open("POST", url, true);   
http.setRequestHeader("X-PINGOTHER", "pingpong");
http.setRequestHeader('Content-Type', 'application/xml');

http.setRequestHeader("Content-length", mybody.length);
http.setRequestHeader("Connection", "close");   
http.send(mybody);

I sent the xml data to my server and received a return response in the Safari browser, but I cannot do this in iTunes LP. So what are the problems?

Answer 1

, iTunes LP, , , JSONP, . , .

Answer 2

JSONP - , , JSONP. .

XmlHttpRequest, -.