Illegal operation in Greasemonkey script compiler [duplicate]

Question

This question already has an answer here:

Greasemonkey script compiler is showing an error (1 answer)

Closed 6 years ago.

I have a Greasemonkey script and I'm using a Greasemonkey to xpi compiler

I use this script:

// ==UserScript==
// @name           Teste Script
// @author         Bla
// ==/UserScript==

var Main = setInterval(
    function () {
        alert(window.location.href);
    }, 1000);

and when I install the xpi, I keep getting this error:

Error: Illegal operation on WrappedNative prototype object

Already tried window.alert and it still shows the same error.

Answer 1

Well, It looks like the converter is somehow broken.

If i take an hello world script with this content:

// ==UserScript==
// @name          Webmonkey's Hello World
// @namespace     http://www.webmonkey.com
// @description   A basic example of Greasemonkey that causes an alert at each page load.
// @include       *
// ==/UserScript==


alert('Monkey sez... "Hello World!"');

The error is still there. So i don't suspect that your code is the problem, more the compiler.

I've never created an XPI by myself, but i think that you should try it by hand and see if that works. Perhaps will this problem be fixed in the future ( watch his github page for updates )