Ticket #48021: 48021.diff

src/js/media/views/uploader/status.js

@@ -128 +128 @@
                 }
                 wp.Uploader.errors.reset();
                 // Move focus to the modal after the dismiss button gets removed from the DOM.
-                this.controller.modal.focusManager.focus();
+                if ( this.controller.modal ) {
+                        this.controller.modal.focusManager.focus();
+                }
         }
 });