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IMDb - stop scripts

Prevent unnecessary scripts from loading

目前为 2021-08-28 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         IMDb - stop scripts
  3. // @namespace    https://github.com/Procyon-b
  4. // @version      0.6.1
  5. // @description  Prevent unnecessary scripts from loading
  6. // @author       Achernar
  7. // @match        https://www.imdb.com/*
  8. // @run-at       document-start
  9. // @grant        none
  10. // ==/UserScript==
  11.  
  12. (function() {
  13. "use strict";
  14.  
  15. // which scripts to block
  16. function match(s) {
  17.   return /^https?:\/\/(m\.media-amazon\.com\/images\/I\/|d1zcggttmijv1z\.cloudfront\.net\/_next\/static\/).*[^?]$/.test(s);
  18.   }
  19.  
  20. // catch scripts before they are loaded
  21. var obs=new MutationObserver(function(muts){
  22.   for (let mut of muts) {
  23.     for (let n of mut.addedNodes) {
  24.       if ((n.nodeType == 1) && (n.tagName == 'SCRIPT')) {
  25.         let src=n.src;
  26.         if (!src) continue;
  27.         if (match(src)) {
  28.           n.type='not/javascript';
  29.           n.addEventListener('beforescriptexecute', function(e){e.preventDefault();}, true);
  30.           }
  31.         }
  32.       }
  33.     }
  34.   });
  35.  
  36. var c=0;
  37. function startObs() {
  38.   c++;
  39.   if (!document.documentElement) {
  40.     setTimeout(startObs,0);
  41.     return;
  42.     }
  43.   obs.observe(document.documentElement, {childList:true, subtree:true});
  44.   
  45.   let st=document.createElement('style');
  46.   (document.head || document.documentElement).appendChild(st);
  47.   st.innerText='.ipc-loader__circle {animation: unset !important;}';
  48. }
  49.  
  50. startObs();
  51.  
  52. // load rest of the script after DOM is ready
  53. if (document.readyState != 'loading') init();
  54. else document.addEventListener('DOMContentLoaded', init);
  55.  
  56. function init() {
  57.  
  58. var search=document.getElementById('suggestion-search');
  59. if (!search && !/^https:\/\/www\.imdb\.com\/.*\/mediaviewer\//.test(location.href) ) return;
  60.  
  61. if (search) search.oninput=fix;
  62.  
  63. function addJS(u, ol) {
  64.   if (!u) return;
  65.   var el=document.createElement('script');
  66.   el.src=u;
  67.   if (ol) el.onload=ol;
  68.   try {
  69.     let r=document.head || document.documentElement;
  70.     r.insertBefore(el,r.firstChild);
  71.   }catch(e){}
  72.   if (el.parentNode) el.parentNode.removeChild(el);
  73. }
  74.  
  75. var a, all=[], uniq={};
  76.  
  77. // load blocked scripts
  78. function fix() {
  79.   if (search) search.oninput=null;
  80.   a=document.querySelectorAll('script[src*="m.media-amazon.com/images/I/"], script[src*="d1zcggttmijv1z.cloudfront.net/_next/static/"]');
  81.   a.forEach(function(e,i,a){
  82.     if (!uniq[e.src]) all.push(e.src);
  83.     uniq[e.src]=1;
  84.     });
  85.   loadJS();
  86. }
  87.  
  88. function fixPage() {
  89.   if (location.href.startsWith('https://www.imdb.com/title/')) {
  90.     var a=document.querySelectorAll('a[href="/"]');
  91.     a.forEach(function(e){e.href='javascript:;'});
  92.     }
  93. }
  94.  
  95. fixPage();
  96.  
  97. function loadJS() {
  98.   if (all.length==0) return;
  99.   addJS(all.shift()+'?', loadJS);
  100. }
  101.  
  102. if (location.pathname=='/') fix();
  103. if (/^https:\/\/www\.imdb\.com\/.*\/mediaviewer\//.test(location.href)) fix();
  104. }
  105.  
  106. })();