Facebook DevTools Enabler

Restores right-click, context menu, and enables Eruda/dev tools on Facebook

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

Advertisement:

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

Advertisement:

// ==UserScript==
// @name         Facebook DevTools Enabler
// @namespace    http://tampermonkey.net
// @version      1.1
// @description  Restores right-click, context menu, and enables Eruda/dev tools on Facebook
// @match        https://*.facebook.com/*
// @run-at       document-start
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // ==========================================
    // BLOCK RIGHT-CLICK PREVENTION
    // ==========================================
    
    // Store original addEventListener
    const originalAddEventListener = EventTarget.prototype.addEventListener;
    
    // Override addEventListener to block contextmenu prevention
    EventTarget.prototype.addEventListener = function(type, listener, options) {
        // Block contextmenu, selectstart, copy, cut, paste prevention
        const blockedEvents = ['contextmenu', 'selectstart', 'dragstart', 'copy', 'cut', 'paste'];
        
        if (blockedEvents.includes(type)) {
            console.log(`[DevTools Enabler] Blocked ${type} event listener`);
            return;
        }
        
        // Block keydown prevention for F12, Ctrl+Shift+I, etc.
        if (type === 'keydown' || type === 'keyup') {
            const wrappedListener = function(e) {
                // Allow dev tool shortcuts
                if (e.key === 'F12' || 
                    (e.ctrlKey && e.shiftKey && (e.key === 'I' || e.key === 'J' || e.key === 'C')) ||
                    (e.ctrlKey && e.key === 'U')) {
                    return;
                }
                return listener.call(this, e);
            };
            return originalAddEventListener.call(this, type, wrappedListener, options);
        }
        
        return originalAddEventListener.call(this, type, listener, options);
    };

    // ==========================================
    // REMOVE EXISTING BLOCKERS
    // ==========================================
    
    // Remove oncontextmenu, onselectstart, etc from document and body
    const removeBlockers = () => {
        if (document.documentElement) {
            document.documentElement.oncontextmenu = null;
            document.documentElement.onselectstart = null;
            document.documentElement.ondragstart = null;
        }
        if (document.body) {
            document.body.oncontextmenu = null;
            document.body.onselectstart = null;
            document.body.ondragstart = null;
        }
    };

    // Run immediately and on DOM ready
    removeBlockers();
    document.addEventListener('DOMContentLoaded', removeBlockers);

    // ==========================================
    // INJECT ERUDA (if not already loaded)
    // ==========================================
    
    const injectEruda = () => {
        if (window.eruda) return; // Already loaded
        
        const script = document.createElement('script');
        script.src = 'https://cdn.jsdelivr.net/npm/eruda';
        script.onload = () => {
            window.eruda.init({
                tool: ['console', 'elements', 'network', 'resources', 'info'],
                autoScale: true,
                defaults: { displaySize: 50 }
            });
            console.log('[DevTools Enabler] Eruda console initialized');
        };
        document.head.appendChild(script);
    };

    // ==========================================
    // BYPASS SECURITY POLICIES
    // ==========================================
    
    // Remove Content Security Policy restrictions
    const meta = document.createElement('meta');
    meta.httpEquiv = 'Content-Security-Policy';
    meta.content = "default-src * 'unsafe-inline' 'unsafe-eval' data: blob:; script-src * 'unsafe-inline' 'unsafe-eval'; style-src * 'unsafe-inline';";
    
    if (document.head) {
        document.head.appendChild(meta);
    } else {
        document.addEventListener('DOMContentLoaded', () => {
            document.head.appendChild(meta);
        });
    }

    // ==========================================
    // UNBLOCK DEV TOOLS SHORTCUTS
    // ==========================================
    
    window.addEventListener('keydown', (e) => {
        // Don't block F12 or Ctrl+Shift+I/J/C
        if (e.key === 'F12' || 
            (e.ctrlKey && e.shiftKey && ['I','J','C'].includes(e.key))) {
            e.stopImmediatePropagation();
        }
    }, true);

    // ==========================================
    // INIT
    // ==========================================
    
    console.log("[DevTools Enabler] Facebook restrictions bypassed");
    
    // Inject Eruda after a short delay to ensure page is ready
    setTimeout(injectEruda, 1000);
    
    // Re-apply blockers removal periodically
    setInterval(removeBlockers, 2000);

})();