Youtube Parameters Stripper

// ==UserScript==
// @name        Youtube Parameters Stripper
// @namespace   lehollandaisvolant.net
// @description Removes ?feature* parametes on Youtube
// @include     http://*.youtube.com/watch*
// @include     https://*.youtube.com/watch*
// @version     1
// ==/UserScript==
(function () {
  var sp = window.location.search.replace(/^\?/, '').split('&'),
  sk = [
  ];
  for (var i = 0; i < sp.length; i++) {
    if (!/^(?:feature|annotation_id|src_vid|NR)$/i.test(sp[i].split('=') [0])) {
      sk.push(sp[i]);
    }
  }
  var newurl = window.location.protocol + '//' + window.location.host
  + window.location.pathname + (sk.length ? '?' + sk.join('&')  : '')
  + window.location.hash;
  if (newurl != window.location.href) {
    (!!(window.history && window.history.pushState)
    ? window.history.pushState(null, null, newurl)
    : window.location.replace(newurl)
    );
  }
}) ();