Aggressive approach to remove Amazon tracking parameters across all country domains
// ==UserScript==
// @name Remove Amazon Tracking Parameters (All Domains)
// @namespace http://tampermonkey.net/
// @version 2.0
// @description Aggressive approach to remove Amazon tracking parameters across all country domains
// @include *://*.amazon.*/*
// @grant none
// @run-at document-start
// @license MIT
// ==/UserScript==
(function() {
'use strict';
/**
* Removes tracking from the current URL if it matches an Amazon product page
* and rewrites history to a clean version of the URL.
*/
function cleanAmazonUrl() {
var currentURL = window.location.href;
// Matches /dp/ASIN or /gp/product/ASIN with a 10-character code
// The 'i' flag lets it match uppercase or lowercase letters/numbers
var asinPattern = /\/(?:dp|gp\/product)\/([A-Z0-9]{10})(?:[/?]|$)/i;
var match = asinPattern.exec(currentURL);
if (match) {
var asin = match[1];
var newURL = window.location.protocol + '//' + window.location.host + '/dp/' + asin;
if (newURL !== currentURL) {
// Rewrite the URL in the address bar without triggering a page reload
window.history.replaceState({}, document.title, newURL);
}
}
}
// --- Hook into history methods and popstate to catch all Amazon URL changes --- //
var _pushState = history.pushState;
var _replaceState = history.replaceState;
// Override pushState
history.pushState = function(state, title, url) {
var ret = _pushState.apply(this, arguments);
// After pushState is called, clean the URL
setTimeout(cleanAmazonUrl, 10);
return ret;
};
// Override replaceState
history.replaceState = function(state, title, url) {
var ret = _replaceState.apply(this, arguments);
// After replaceState is called, clean the URL
setTimeout(cleanAmazonUrl, 10);
return ret;
};
// Also listen for popstate (back/forward browser buttons)
window.addEventListener('popstate', function() {
// Clean the URL after a brief delay
setTimeout(cleanAmazonUrl, 10);
});
// Lastly, do an initial cleanup as early as possible (document-start)
cleanAmazonUrl();
})();