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   1  /**
   2   * @output wp-includes/js/zxcvbn-async.js
   3   */
   4  
   5  /* global _zxcvbnSettings */
   6  
   7  /**
   8   * Loads zxcvbn asynchronously by inserting an async script tag before the first
   9   * script tag on the page.
  10   *
  11   * This makes sure zxcvbn isn't blocking loading the page as it is a big
  12   * library. The source for zxcvbn is read from the _zxcvbnSettings global.
  13   */
  14  (function() {
  15    var async_load = function() {
  16      var first, s;
  17      s = document.createElement('script');
  18      s.src = _zxcvbnSettings.src;
  19      s.type = 'text/javascript';
  20      s.async = true;
  21      first = document.getElementsByTagName('script')[0];
  22      return first.parentNode.insertBefore(s, first);
  23    };
  24  
  25    if (window.attachEvent != null) {
  26      window.attachEvent('onload', async_load);
  27    } else {
  28      window.addEventListener('load', async_load, false);
  29    }
  30  }).call(this);