https://www.livreshebdo.fr/modules/custom/node_edit_protection/node-edit-protection.js?v=1.x

1/**
2 * @file
3 * Stops page from changing when user is posting.
4 */
5
6(function($, Drupal, drupalSettings) {
7  Drupal.node_edit_protection = {};
8  var click = false;
9  // Allow Submit/Edit button.
10  var edit = false;
11  // Dirty form flag.
12  Drupal.behaviors.nodeEditProtection = {
13        /**
14          * @param contentType
15          * @param context
16         */
17        protectForm: function(contentType, context) {
18
19      // If they leave an input field, assume they changed it.
20          $("." + contentType + "-form :input", context).each(function() {
21        $(this).blur(function() {
22          edit = true;
23        });
24      });
25
26      // Let all form submit buttons through.
27        $("." + contentType + "-form input[type='submit'], ." + contentType + "-form button[type='submit']", context).each(function() {
28        $(this).addClass('node-edit-protection-processed');
29        $(this).click(function() {
30          click = true;
31        });
32      });
33
34      // Catch all links and buttons EXCEPT for "#" links.
35      $("a, button, input[type='submit']:not(.node-edit-protection-processed), button[type='submit']:not(.node-edit-protection-processed)", context)
36          .each(function() {
37            $(this).click(function() {
38              // Return when a "#" link is clicked so as to skip the
39              // window.onbeforeunload function.
40              if (edit && $(this).attr("href") != "#") {
41                return 0;
42              }
43            });
44          });
45
46      // Handle backbutton, exit etc.
47      window.onbeforeunload = function() {
48        // Add CKEditor support.
49        if (typeof (CKEDITOR) != 'undefined' && typeof (CKEDITOR.instances) != 'undefined') {
50          for (var i in CKEDITOR.instances) {
51            if (CKEDITOR.instances[i].checkDirty()) {
52              edit = true;
53              break;
54            }
55          }
56        }
57        if (edit && !click) {
58          click = false;
59          return (Drupal.t("Les modifications que vous avez apportées ne seront peut-être pas enregistrées."));
60        }
61      }
62     },
63    attach : function(context) {
64       this.protectForm('node', context);
65    }
66  };
67})(jQuery, Drupal, drupalSettings);