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A lightweight, robust userscript designed to protect users from known Rickrolls on YouTube. Optimized specifically for mobile environments (iOS Userscripts) and modern browser security policies.
// ==UserScript==
// @name Anti Rickroll (Universal)
// @version 1.7.5
// @description A lightweight, robust userscript designed to protect users from known Rickrolls on YouTube. Optimized specifically for mobile environments (iOS Userscripts) and modern browser security policies.
// @author JMcrafter26
// @match https://*.youtube.com/watch?*
// @match https://youtube.com/watch?*
// @match https://*.youtube.com/embed/*
// @match https://youtube.com/embed/*
// @match https://*.youtu.be/*
// @match https://youtu.be/*
// @run-at document-start
// @grant none
// @namespace http://github.com/sepehr
// ==/UserScript==
(function() {
'use strict';
const config = {
storageKey: 'antiRickroll',
bypassPrefix: 'rr_bypass_',
icon: "https://files.catbox.moe/ylj5xb.png",
apiUrl: "https://api.jm26.net/rickroll-db/?type=get&api=userscript",
statsUrl: "https://api.jm26.net/extensions/anti-rickroll/stats.php",
updateInterval: 86400000,
fallbackDatabase: ["dQw4w9WgXcQ", "oHg5SJYRHA0", "cvh0nX08nRw", "xfr64zoBTAQ", "iik25wqIuFo"]
};
function generateTraceId() {
const hex = () => Math.floor((1 + Math.random()) * 0x100000000).toString(16).substring(1);
return `${hex()}${hex()}`;
}
// Using fetch with keepalive: true to survive window.stop()
function reportStats(id, type, trace) {
try {
const formData = new URLSearchParams();
formData.append('id', id);
formData.append('type', type);
formData.append('trace', trace);
formData.append('version', '1.7.5');
fetch(config.statsUrl, {
method: 'POST',
body: formData,
keepalive: true, // CRITICAL: Ensures request survives page unloading
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
}).catch(e => console.error("Stats Error:", e));
} catch (e) {
console.error("Stats Build Error:", e);
}
}
function getFullDatabase() {
let localIds = [];
try {
const data = localStorage.getItem(config.storageKey);
if (data) {
const parsed = JSON.parse(data);
localIds = Array.isArray(parsed) ? parsed : (parsed.database || []);
}
} catch (e) {}
return [...new Set([...config.fallbackDatabase, ...localIds])];
}
async function updateDatabase() {
const now = Date.now();
let store = {};
try { store = JSON.parse(localStorage.getItem(config.storageKey) || "{}"); } catch(e) {}
if (store.lastUpdate && (now - store.lastUpdate < config.updateInterval)) return;
try {
const response = await fetch(config.apiUrl);
const json = await response.json();
if (json && json.ids) {
const existing = Array.isArray(store) ? store : (store.database || []);
localStorage.setItem(config.storageKey, JSON.stringify({
database: [...new Set([...existing, ...json.ids])],
lastUpdate: now
}));
}
} catch (e) {}
}
function checkVideo() {
let videoId = null;
let contentType = "video";
const url = window.location.href;
if (url.includes('v=')) {
videoId = new URLSearchParams(window.location.search).get('v');
} else if (url.includes('/embed/')) {
videoId = url.split('/embed/')[1].split(/[?#]/)[0];
contentType = "embed";
} else if (url.includes('youtu.be/')) {
videoId = url.split('youtu.be/')[1].split(/[?#]/)[0];
}
if (!videoId || sessionStorage.getItem(config.bypassPrefix + videoId) === 'true') {
const blocker = document.getElementById('antirickroll-wrapper');
if (blocker) {
blocker.remove();
document.documentElement.style.overflow = '';
}
return;
}
if (getFullDatabase().includes(videoId)) {
const traceId = generateTraceId();
// 1. Send stats FIRST (asynchronously)
reportStats(videoId, contentType, traceId);
// 2. Mute audio
const video = document.querySelector('video');
if (video) { video.muted = true; video.pause(); }
// 3. Render block
document.title = "⚠️ Rickroll Blocked!";
renderBlocker(videoId, contentType, traceId);
}
}
function renderBlocker(id, type, trace) {
if (document.getElementById('antirickroll-wrapper')) return;
// 4. Stop window execution AFTER firing the request
window.stop();
const blocker = document.createElement('div');
blocker.id = 'antirickroll-wrapper';
blocker.setAttribute('style', 'position:fixed !important; top:0 !important; left:0 !important; width:100vw !important; height:100vh !important; z-index:2147483647 !important; background:#fff; overflow:auto !important; display:block !important;');
blocker.innerHTML = `
<style>
#antirickroll-wrapper { --google-gray-700: rgb(95, 99, 104); color: var(--google-gray-700); word-wrap: break-word; font-family: 'Segoe UI', Tahoma, sans-serif; font-size: 16px; line-height: 1.4; }
.nav-wrapper .secondary-button{ background: #fff; border: 1px solid rgb(154, 160, 166); color: var(--google-gray-700); padding: 6px 12px; border-radius: 4px; cursor: pointer; font-size: 14px;}
.ssl button{ border: 0; border-radius: 4px; color: #fff; cursor: pointer; float: right; padding: 6px 12px; font-family: 'Segoe UI', Tahoma, sans-serif;}
.ssl .primary-button { background: rgb(26, 115, 232); }
.details-code{ color: var(--google-gray-700); font-size: .75em; margin-top: 15px; border-top: 1px solid #eee; padding-top: 10px; line-height: 1.8;}
h1{ color: rgb(32, 33, 36); font-size: 1.4em; font-weight: normal; margin-bottom: 12px; margin-top: 0;}
.interstitial-wrapper{ box-sizing: border-box; margin: 10vh auto 0; max-width: 90% !important; width: 500px; padding: 20px;}
.nav-wrapper{ margin-top: 25px; display: flex; justify-content: flex-end; gap: 8px; }
.icon{ height: 60px; margin: 0 0 20px; width: 60px; background-image: url("${config.icon}"); background-size: contain; background-repeat: no-repeat;}
@media (prefers-color-scheme: dark){
#antirickroll-wrapper { background: #202124 !important; color: rgb(155, 160, 165);}
.nav-wrapper .secondary-button{ background: #202124; border: 1px solid rgb(154, 160, 166); color: rgb(138, 180, 248);}
.ssl .primary-button { background: rgb(129, 162, 208); color: #202124; }
.details-code { border-top-color: #3c4043; color: #9aa0a6; }
h1 { color: rgb(155, 160, 165); }
}
</style>
<div class="ssl">
<div class="interstitial-wrapper">
<div class="icon"></div>
<h1>You are about to get Rickrolled!</h1>
<p>This ${type} is a known Rickroll and has been intercepted.</p>
<div class="nav-wrapper">
<button id="rr-continue" class="secondary-button">Continue</button>
<button class="primary-button" onclick="history.length>1?history.back():window.close();">Back to safety</button>
</div>
<div class="details-code">
Trace ID: <b>${trace}</b><br>
Video ID: <b>${id}</b><br>
Status: <b>BLOCKED_${type.toUpperCase()}</b>
</div>
</div>
</div>`;
(document.documentElement || document.body).appendChild(blocker);
document.documentElement.style.overflow = 'hidden';
document.getElementById('rr-continue').onclick = function() {
sessionStorage.setItem(config.bypassPrefix + id, 'true');
location.reload();
};
}
window.addEventListener('yt-navigate-finish', checkVideo);
let lastUrl = location.href;
new MutationObserver(() => {
if (location.href !== lastUrl) {
lastUrl = location.href;
checkVideo();
}
}).observe(document, {subtree: true, childList: true});
checkVideo();
updateDatabase();
})();