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StumbleOut

Breaks the original link out of StumbleUpon frames and rewrites YouTube embed URLs to their proper video pages.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        StumbleOut
// @version     2.3
// @author      raina
// @namespace   raina
// @description Breaks the original link out of StumbleUpon frames and rewrites YouTube embed URLs to their proper video pages.
// @license     http://www.gnu.org/licenses/gpl-3.0.txt
// @include     http://www.stumbleupon.com/su/*
// @run-at      document-start
// @grant       none
// ==/UserScript==
(function() {
	"use strict";


	var ready = function() {
		if ("complete" === document.readyState) {
			observe();
		}
	};


	var observe = function() {
		var observer = new MutationObserver(function(mutations) {
			mutations.forEach(function(mutation) {
				if ("class" === mutation.attributeName) {
					if ("undefined" === typeof iframe || !iframe) {
						iframe = document.querySelector('.stumble-frame');
					}
					if ("undefined" !== typeof iframe && iframe) {
						if (/youtube\.com\/embed/.test(iframe.src)) {
							var video = iframe.src.replace(/(embed\/)([\w\d-]+)(\?.*$)/, "watch?v=$2");
							var timestamp;
							if (timestamp = iframe.src.match(/t=\d+m\d+s/)) {
								video += "&" + timestamp[0];
							}
							window.location.href = video;
						} else {
							window.location.href = iframe.src;
						}
						observer.disconnect();
					}
				}
			});
		});
		var config = {attributes: true};
		observer.observe(document.body, config);
	}


	if (window.self === window.top) {
		var iframe;
		document.addEventListener("readystatechange", ready, false);
	}
}());