Discovering the destination link of a website while utilizing GM_xmlhttpRequest

Picture yourself browsing a webpage called "www.yourWebsite.com" and utilizing userscripts in Tampermonkey to extract data from another site using the GM_xmlhttpRequest function.

As you make requests with the GM_xmlhttpRequest function to visit "exampleWebsite.com", you notice that it occasionally redirects to "exampleWebsite.com/partOne" or "exampleWebsite.com/partTwo".

Your objective is to determine whether the redirect leads to "exampleWebsite.com/partOne" or "exampleWebsite.com/partTwo". However, attempts to use window.location.href only return the current site, "www.yourWebsite.com".

How can this issue be addressed?

     var GoToURL = "exampleWebsite.com"; 
     GM_xmlhttpRequest({
     method: "GET",
     url: GoToURL,
     onload: function(response) {

     alert(window.location.href);

     } //end of onload: function(response) {
     }); //end of GM_xmlhttpRequest({
javascriptuserscriptstampermonkeywindow.locationgm-xmlhttprequest

Answer №1

If you're using Tampermonkey, you have the ability to check the finalUrl property of the response in order to determine where the redirect is pointing to. For instance, if you have a PHP page like this:

<?php
header('Location: https://www.google.com/');
?>

the following userscript will log https://www.google.com/ to the console:

GM_xmlhttpRequest({
  method: "GET",
  url: GoToURL,
  onload: function(response) {
    console.log(response.finalUrl);
  }
});

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