https://getmegiddy.com/modules/contrib/webform/js/webform.behaviors.js?tjgaqc

1/**
2 * @file
3 * Webform behaviors.
4 */
5
6(function ($, Drupal) {
7  // Trigger Drupal's attaching of behaviors after the page is
8  // completely loaded.
9  // @see https://stackoverflow.com/questions/37838430/detect-if-page-is-load-from-back-button
10  // @see https://stackoverflow.com/questions/20899274/how-to-refresh-page-on-back-button-click/20899422#20899422
11  var isChrome = (/chrom(e|ium)/.test(window.navigator.userAgent.toLowerCase()));
12  if (isChrome) {
13    // Track back button in navigation.
14    // @see https://stackoverflow.com/questions/37838430/detect-if-page-is-load-from-back-button
15    var backButton = false;
16    if (window.performance) {
17      var navEntries = window.performance.getEntriesByType('navigation');
18      if (navEntries.length > 0 && navEntries[0].type === 'back_forward') {
19        backButton = true;
20      }
21      else if (window.performance.navigation
22        && window.performance.navigation.type === window.performance.navigation.TYPE_BACK_FORWARD) {
23        backButton = true;
24      }
25    }
26
27    // If the back button is pressed, delay Drupal's attaching of behaviors.
28    if (backButton) {
29      var attachBehaviors = Drupal.attachBehaviors;
30      Drupal.attachBehaviors = function (context, settings) {
31        setTimeout(function () {
32          attachBehaviors(context, settings);
33        }, 300);
34      };
35    }
36  }
37
38})(jQuery, Drupal);