// ==UserScript==
// @name           Smile@Amazon
// @name:de        Smile@Amazon
// @description    Redirects any Amazon shopping site to its Smile representation
// @description:de Leitet jede Amazon Shopping Seite zu ihrem Smile Äquivalent um
// @namespace      zScript
// @include        https://www.amazon.tld/*
// @icon           https://smile.amazon.com/favicon.ico
// @version        1.0
// @grant          none
// @downloadURL none
// ==/UserScript==

// I created this script because any other Script redirecting to Amazon Smile has one or another flaw
// Most Scripts check for only one TLD like .COM, this script should work for all domains Tampermonkey supports.
// As Amazon redirects its shopping site always to the HTTPS protocol and the WWW subdomain, i only include httpS://WWW.amazon...
// As Amazon prevents to be included in Frames from other sites, i only prevent redirection if the top window is already smile.amazon
// This way i leave (i)frames created by smile.amazon the way Amazon created them, hoping they know what they're doing.
(function() {
    'use strict';
    if(top.location.href.match(/^http(?:s)?:\/\/smile\.amazon\.[^/]+\//i) === null){
        window.location.replace(window.location.href.replace(/^http(?:s)?:\/\/www\./i, "https://smile."));
    }
})();