Question

i try to make a Firefox Addon which runs a XMLHttp Request in Javascript. I want to get the data from this request and send it to *.body.innerhtml.

That’s my code so far…

var xhr = new XMLHttpRequest();
xhr.open("GET", "http://xx.xxxxx.com", true);
xhr.send();
setTimeout(function() { set_body(xhr.responseHtml); }, 6000);

Instead of receiving the data, I get “undefined”. If I change xhr.responseHtml to responseText I get nothing. I don’t know why I’m getting nothing. I’m working on Ubuntu 12.04 LTS with Firefox 12.0.

If you need any more details on the script please ask!

Update:

set_body Function

document.body.innerHTML = '';
document.body.innerHTML = body;
document.close();

Answer 1

Update SOLVED:

I had to determine the RequestHeaders (right after xhr.open):

xhr.setRequestHeader("Host", "xxx");

For following Items: Host, Origin and Referer. So it seems there was really a problem with the same origin policy.

But now it works! Thanks to all!