JavaScript to login account not working

Question

Code that automatically go to login page and click login:

javascript: window.location = 'https://1.1.1.1/login.HTML';
while (true) {
    if (document.readyState == "complete") {
        window.onload(document.forms[0].Submit.click());
        break;
    }
}

^{Code passed through jsbeautifier; original does not have line breaks}

I paste this script on urlbar but its not working (it go to https://1.1.1.1/login.HTML but not login) but if I'm on https://1.1.1.1/login.HTML and paste this script it works. I don't understand why it does not work.

Answer 1

javascript: URLs are run in the context of the current page.