Access to restricted URI denied code: 1012

Question

How do you get around this Ajax cross site scripting problem on FireFox 3?

Answer 1

One more solution: if all you need is the headers, you can specify "HEAD" as the method and it won't trigger the security issue. For instance, if you just want to know if the web page exists.

var client = new XMLHttpRequest();
client.open("HEAD", my_url, false);
client.send(null);
if(client.readyState != 4 || client.status != 200) //if we failed
    alert("can't open web page");