Ticket #20700: customizer-accordion.diff

wp-includes/js/customize-controls.dev.js

@@ -460 +460 @@
 
                 // Temporary accordion code.
                 $('.customize-section-title').click( function() {
-                        $( this ).parents('.customize-section').toggleClass( 'open' );
+                        var clicked = $( this ).parents( '.customize-section' );
+                        $( '.customize-section' ).not( clicked ).removeClass( 'open' );
+                        clicked.toggleClass( 'open' );
                         return false;
                 });