Ticket #26019: 26019.patch

src/wp-includes/js/customize-preview.js

@@ -90 +90 @@
                         preview.send( 'synced' );
                 });
 
-                preview.bind( 'active', function() {
-                        if ( api.settings.nonce )
-                                preview.send( 'nonce', api.settings.nonce );
-                });
+        preview.bind( 'active', function() {
+            if ( api.settings.nonce )
+                preview.send( 'nonce', api.settings.nonce );
+        });
 
                 preview.send( 'ready' );