javascript - XDomainRequest 上的访问被拒绝错误

Question

我正在尝试使用 Microsoft XDomainRequest 发送跨域请求。这是代码

...
if ($.browser.msie && window.XDomainRequest) {
  // Use Microsoft XDR
  var xdr = new XDomainRequest();
    xdr.open("POST", "http://graph.facebook.com/1524623057/");

  xdr.send();
} 
 ....

它在 xdr.open(...) 行给出 SCRIPT5: Access is denied. 错误。

Answer 1

我找到了这个问题的原因。如 Point 7 中所述:

Requests must be targeted to the same scheme as the hosting page

This restriction means that if your AJAX page is at http://example.com, then your target URL must also begin with HTTP. Similarly, if your AJAX page is at https://example.com, then your target URL must also begin with HTTPS.