replaces reddits youtube/vimeo iframe with the iframe from the corresponding website
// ==UserScript==
// @name Reddit Replace Iframe
// @namespace kmcdeals.com
// @version 1
// @description replaces reddits youtube/vimeo iframe with the iframe from the corresponding website
// @author kmc
// @match https://*.reddit.com/*
// @require http://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js
// ==/UserScript==
$(document).on('click', ".expando-button.video.expanded", function(event) {
var href = $(event.target).parent().find("a.title").attr("href");
if(href.indexOf("vimeo") > -1) //if vimeo
href = href.replace(/https?:\/\/vimeo\.com/, "//player.vimeo.com/video");
if(href.indexOf("youtube") > -1 || href.indexOf("youtu.be") > -1)
href = href.replace(/https?:\/\/youtu\.be/g, "//www.youtube.com/embed").replace(/https:|m\./g, "").replace(/watch\?v=/g, "embed/");
var iframe = $(event.target).parent().find(".expando").children()[0];
$(iframe).replaceWith('<iframe width="610" height="460" src="' + href + '" frameborder="0" allowfullscreen></iframe>');
});