Ticket #44284: widgets.js.patch

wp-admin/js/widgets.js

@@ -178 +178 @@
                                         });
                                 }
                         } else if ( target.hasClass('widget-control-save') ) {
-                                wpWidgets.save( target.closest('div.widget'), 0, 1, 0 );
-                                e.preventDefault();
+                                var widget = target.closest( 'div.widget' );
+                                var form = widget.find( 'form' );
+
+                                wpWidgets.save( widget, 0, 1, 0 );
+                                
+                                if ( ! form[0].checkValidity() ) {
+                                        return;
+                                } else {
+                                        e.preventDefault();
+                                }
+
                         } else if ( target.hasClass('widget-control-remove') ) {
                                 wpWidgets.save( target.closest('div.widget'), 1, 1, 0 );
                         } else if ( target.hasClass('widget-control-close') ) {