--- a/wp/wp-admin/js/widgets/text-widgets.js	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-admin/js/widgets/text-widgets.js	Fri Sep 05 18:40:08 2025 +0200
@@ -291,7 +291,7 @@
 				onInit = function() {
 
 					// When a widget is moved in the DOM the dynamically-created TinyMCE iframe will be destroyed and has to be re-built.
-					$( editor.getWin() ).on( 'unload', function() {
+					$( editor.getWin() ).on( 'pagehide', function() {
 						_.defer( buildEditor );
 					});