fix: double-check that ev.detail exists

django-cms · Oct 2, 2023 · 797fd21 · 797fd21
1 parent 5d9ca31
commit 797fd21
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/filer/static/filer/js/addons/dropzone.init.js b/filer/static/filer/js/addons/dropzone.init.js
@@ -164,7 +164,7 @@ djQuery(function ($) {
         // There is no way to feature detect the new behavior implemented in Django 1.9
         if (!window.__admin_utc_offset__) {
             $(document).on('formset:added', function (ev, row) {
-                if(ev.detail.formsetName) {
+                if(ev.detail && ev.detail.formsetName) {
                     /*
                         Django 4.1 changed the event type being fired when adding
                         a new formset from a jQuery to a vanilla JavaScript event.