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Google Cache Browser

Continue browsing the page in Google cache

  1. // ==UserScript==
  2. // @name        Google Cache Browser
  3. // @namespace   qixinglu.com
  4. // @description Continue browsing the page in Google cache
  5. // @grant       none
  6. // @include     http://webcache.googleusercontent.com/search?*
  7. // @include     https://webcache.googleusercontent.com/search?*
  8. // @version 0.0.1.20140517140355
  9. // ==/UserScript==
  10.  
  11. var convertCacheLinks = function(url) {
  12.     var selector = 'body > div[style="position:relative"] a';
  13.     var links = document.querySelectorAll(selector);
  14.     var i, link;
  15.     for (i = 0; i < links.length; i += 1) {
  16.         link = links[i];
  17.         link.href = location.href.replace(url, encodeURIComponent(link.href));
  18.     }
  19. };
  20.  
  21. var addOriginalLink = function(url) {
  22.     var html = 'Go back to <a href="${href}">original page</a>.';
  23.     var paragraph = document.createElement('p');
  24.     paragraph.innerHTML = html.replace('${href}',decodeURIComponent(url));
  25.     document.body.appendChild(paragraph);
  26. };
  27.  
  28. var url = location.href.match(/q=cache:([^&+]+)/)[1];
  29. if (document.title === 'Error 404 (Not Found)!!1') {
  30.     addOriginalLink(url);
  31. } else {
  32.     convertCacheLinks(url);
  33. }