Ticket #38833: 38833.0.diff

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

@@ -1450 +1450 @@
                                 request = api.requestChangesetUpdate();
                                 request.done( function() {
                                         $( window ).off( 'beforeunload.customize-confirm' );
-                                        window.location.href = urlParser.href;
+                                        top.location.href = urlParser.href;
                                 } );
                                 request.fail( function() {
                                         overlay.removeClass( 'customize-loading' );