Dear all,
I amstuck with a trivial problem. I need to intercept XHR calls. There
are a number of code snippets that illustrate how this can be done
with GM. One example is the following:
(function(open) {
XMLHttpRequest.prototype.open = function(method, url, async, user,
pass) {
this.addEventListener("readystatechange", function() {
console.log(this.readyState);
}, false);
open.call(this, method, url, async, user, pass);
};
})(XMLHttpRequest.prototype.open);
Now, the problem is that when I use and execute this snippet, I get an
error: "Error: xmlhttprequest is undefined". I tried window and
unsafeWindow, bu to no avail.
I must be doing something completely wrong or misunderstand a central
concept.
Any ideas?
I am using FF 11 and GM 0.9.18.
Thanks
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