Ancestry.com AncestryLibrary.com Switcheroo

// ==UserScript==
// @name         Ancestry.com/AncestryLibrary.com Switcheroo
// @namespace    https://www.joehxblog.com/
// @version      0.1
// @description  switch between Ancestry.com & AncestryLibary.com while maintaining URL structure
// @author       JoeHx
// @match        https://www.ancestry.com/*
// @match        https://www.ancestrylibrary.com/*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        none
// ==/UserScript==

(() => {
    'use strict';

    const ancestryDomain = 'ancestry.com';
    const ancestryLibraryDomain = 'ancestrylibrary.com';

    document.addEventListener('click', toggleLinkedSite);
    document.addEventListener('keydown', toggleThisSite);
    document.addEventListener('keydown', toggleAllATags);

    function toggleThisSite(e) {
        if (e.ctrlKey && e.code === 'ShiftLeft') {
            let currentHref = window.location.href;
            let newHref = switchDomain(currentHref);
            window.location.replace(newHref);
        }
    }

    function toggleAllATags(e) {
        if (e.ctrlKey && e.code === 'ShiftRight') {
            Array.from(document.getElementsByTagName('a'))
                .forEach(a => {
             a.href = switchDomain(a.href);
            });
        }
    }

    function toggleLinkedSite(e) {
       if (e.ctrlKey) {
           let node = e.target;

           while (node !== undefined && node.tagName.toLowerCase() !== 'a') {
              node = node.parentNode;
           }

           if (node) {
              let newHref = switchDomain(node.href);
              window.location.assign(newHref);
           }
       }
    }

    function switchDomain(href) {
        return href.includes(ancestryLibraryDomain) ? href.replace(ancestryLibraryDomain, ancestryDomain) : href.replace(ancestryDomain, ancestryLibraryDomain);
    }
})();