☰

Block javascript alerts

remove alerts

  1. // ==UserScript==
  2. // @name        Block javascript alerts
  3. // @description remove alerts
  4. // @version     1.0
  5. // @include http*://*
  6. // @run-at      document-start
  7. // @namespace https://greatest.deepsurf.us/users/10606
  8. // ==/UserScript==
  9.  
  10. addJS_Node (null, null, overrideSelectNativeJS_Functions);
  11.  
  12. function overrideSelectNativeJS_Functions () {
  13.     window.alert = function alert (message) {
  14.         console.log (message);
  15.     }
  16. }
  17.  
  18. function addJS_Node (text, s_URL, funcToRun) {
  19.     var D                                   = document;
  20.     var scriptNode                          = D.createElement ('script');
  21.     scriptNode.type                         = "text/javascript";
  22.     if (text)       scriptNode.textContent  = text;
  23.     if (s_URL)      scriptNode.src          = s_URL;
  24.     if (funcToRun)  scriptNode.textContent  = '(' + funcToRun.toString() + ')()';
  25.  
  26.     var targ = D.getElementsByTagName ('head')[0] || D.body || D.documentElement;
  27.     targ.appendChild (scriptNode);
  28. }