Actually fixed regex.

js/plugins.js

@@ -209,11 +209,11 @@ plugins.factory('userPlugins', function() {
      * See: https://developers.google.com/youtube/player_parameters
      */
     var youtubePlugin = new UrlPlugin('YouTube video', function(url) {
-        var regex = /^.*(youtu\.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*/i,
+        var regex = /(?:youtube\.com\/(?:[^\/]+\/.+\/|(?:v|e(?:mbed)?)\/|.*[?&]v=)|youtu\.be\/)([^"&?\/ ]{11})/i,
             match = url.match(regex);
 
         if (match){
-            var token = match[2],
+            var token = match[1],
                 embedurl = "https://www.youtube.com/embed/" + token + "?html5=1&iv_load_policy=3&modestbranding=1&rel=0",
                 element = angular.element('<iframe></iframe>')
                     .attr('src', embedurl)