A quick hack for TamperMonkey to clean up spying bits from Google search results

FixGoogleLinks.js

// ==UserScript==
// @name         FixGoogleLinks
// @namespace    http://github.com/vuori
// @version      1.0
// @description  Quick hack to make Google links go directly to destination
// @author       vuori
// @include      /^https?:\/\/(www\.)?google\.[a-z]+\//
// @homepageURL  https://gist.github.com/vuori/a0410992c0c17213129d9c59fd4e26d9
// @updateURL    https://gist.github.com/vuori/a0410992c0c17213129d9c59fd4e26d9/raw
// @run-at       document-body
// @grant        GM_log
// ==/UserScript==

(function() {
    'use strict';

    const A_RE = /^\/url/;

    function cleanHref(orig) {
        let query = orig.split('?')[1];
        if (!query)
            return orig;

        for (const kv of query.split('&')) {
            if (!kv.startsWith('url='))
                continue;

            return decodeURIComponent(kv.slice(4));
        }

        return orig;
    }

    function cleanNodes(nodes) {
        for (let elem of nodes) {
            const href = elem.href;
            if (!href)
                continue;

            // If this looks like a redirect through Google servers, clean it up.
            if (href.match(A_RE))
                href = cleanHref(href);

            //GM_log(`FixGoogleLinks: cleaned link to ${href}`);

            // Besides that remove event listeners and other junk.
            elem.removeAttribute('onmousedown');
            elem.setAttribute('href', href);
            delete elem.dataset.ved;
            elem.replaceWith(elem.cloneNode(true));
        }
    }

    const linkObserver = new MutationObserver((recordList) => {
        for (let record of recordList) {
            if (!record.addedNodes)
                return;

            for (let elem of record.addedNodes) {
                if (!(elem.tagName === 'DIV' && elem.dataset?.ved && elem.dataset?.hveid))
                    continue;

                // Remove suspicious data on the div
                delete elem.dataset.ved;
                // Clean up link elements
                cleanNodes(elem.querySelectorAll('a'));
            }
        }
    });
    linkObserver.observe(document.body, { childList: true, subtree: true });
})();