github-nuke-turbo.user.js

// ==UserScript==
// @name         Disable Turbo on GitHub
// @namespace    https://gist.github.com/PedroHLC/f6f238834f5ebdfaff5c1bf907745fcb
// @version      1.0.13
// @author       PedroHLC, Claude
// @description  Completely disables Turbo Drive on GitHub
// @match        https://github.com/*
// @run-at       document-start
// @grant        none
// @updateURL    https://gist.github.com/PedroHLC/f6f238834f5ebdfaff5c1bf907745fcb/raw/github-nuke-turbo.user.js
// @downloadURL  https://gist.github.com/PedroHLC/f6f238834f5ebdfaff5c1bf907745fcb/raw/github-nuke-turbo.user.js
// ==/UserScript==

(function() {
    // Disable Turbo Drive when it initializes (but don't disconnect — breaks previews)
    Object.defineProperty(window, 'Turbo', {
        set(val) {
            if (val?.session) {
                val.session.drive = false;
            }
            this._Turbo = val;
        },
        get() { return this._Turbo; },
        configurable: true
    });

    // Make disable-turbo meta always report true when read
    const origGetAttribute = HTMLMetaElement.prototype.getAttribute;
    HTMLMetaElement.prototype.getAttribute = function(name) {
        if (name === 'content' && this.name === 'disable-turbo') return 'true';
        return origGetAttribute.call(this, name);
    };

    // Intercept Turbo Drive navigations
    document.addEventListener('turbo:before-visit', function(e) {
        e.preventDefault();
        window.location.href = e.detail.url;
    });

    // Kill prefetch
    document.addEventListener('turbo:before-prefetch', function(e) {
        e.preventDefault();
    });

    // Only disable the main navigation turbo-frame, leave others alone
    new MutationObserver(() => {
        document.querySelectorAll('[data-turbo-frame="repo-content-turbo-frame"]').forEach(el => {
            el.removeAttribute('data-turbo-frame');
        });
        const navFrame = document.getElementById('repo-content-turbo-frame');
        if (navFrame) navFrame.setAttribute('disabled', '');
    }).observe(document.documentElement, { childList: true, subtree: true });
})();