Ticket #25073: 25073-cache-document.patch

src/wp-includes/js/heartbeat.js

@@ -239 +239 @@
 
                                 if ( trigger && ! hasConnectionError() ) {
                                         settings.connectionError = true;
-                                        $(document).trigger( 'heartbeat-connection-lost', [error, status] );
+                                        $document.trigger( 'heartbeat-connection-lost', [error, status] );
                                 }
                         }
                 }