Aliexpress/eBay/Gearbest URL Shortener

short-ali.userscript.js

// ==UserScript==
// @name         Aliexpress/eBay/Gearbest/Amazon URL Shortener
// @namespace    http://tampermonkey.net/
// @version      0.5
// @author       hedgehog, core.equip
// @match        https://*.aliexpress.com/item/*
// @match        https://*.ebay.de/itm/*
// @match        https://*.ebay.com/itm/*
// @match        https://*.gearbest.com/*
// @match        https://*.amazon.de/*
// @match        https://*.amazon.co.uk/*
// @match        https://*.amazon.es/*
// @match        https://*.amazon.com/*
// @grant        none
// ==/UserScript==

((w, l, h) => {
    'use strict'

    let shops = {
        aliexpress: [/^(https?:\/\/[a-z]+\.aliexpress\.com\/item\/)[^/]+(\/[0-9]+\.html)\??.*$/, '$1-$2'],
        ebay: [/^(https?:\/\/www\.ebay(?:\.[a-z]+)+\/itm\/)[^\/]+(\/[0-9]+)\??.*$/, '$1-$2'],
        gearbest: [/^(https?:\/\/www\.gearbest\.com\/)[^\/]+(\/pp_[0-9]+\.html)\??.*$/, '$1-$2'],
        amazon: [/^(https?:\/\/\w+\.amazon\.[\w.]+\/).*?\/(B[A-Z0-9]+).*$/, '$1dp/$2']
    }

    w.addEventListener('load', function load(event) {
        w.removeEventListener('load', load, false)
        Object.keys(shops).forEach((replace) => h.pushState({}, '', l.href.replace(shops[replace][0], shops[replace][1])))
    },false);
})(window, window.location, window.history);