Ticket #39430: 39430.diff

src/wp-admin/js/customize-controls.js

@@ -564 +564 @@
                                 }
                         }
 
-                        if ( ! $.contains( document, headContainer ) ) {
+                        if ( ! $.contains( document, headContainer.get( 0 ) ) ) {
                                 // jQuery.fn.slideUp is not hiding an element if it is not in the DOM
                                 headContainer.toggle( active );
                                 if ( args.completeCallback ) {
@@ -571 +571 @@
                                         args.completeCallback();
                                 }
                         } else if ( active ) {
-                                headContainer.stop( true, true ).slideDown( duration, args.completeCallback );
+                                headContainer.slideDown( duration, args.completeCallback );
                         } else {
                                 if ( construct.expanded() ) {
                                         construct.collapse({
                                                 duration: duration,
                                                 completeCallback: function() {
-                                                        headContainer.stop( true, true ).slideUp( duration, args.completeCallback );
+                                                        headContainer.slideUp( duration, args.completeCallback );
                                                 }
                                         });
                                 } else {
-                                        headContainer.stop( true, true ).slideUp( duration, args.completeCallback );
+                                        headContainer.slideUp( duration, args.completeCallback );
                                 }
                         }
                 },