public function onKernelResponse(FilterResponseEvent $event)
    {
        $event->getResponse()->headers->set(self::HEADER_NAME, $this->requestId->get());
    }
public function onKernelResponse(FilterResponseEvent $event)
    {
        $event->getResponse()->headers->set(self::HEADER_NAME, $this->requestId->get());
    }
public function onKernelResponse ( FilterResponseEvent $ event ) { $ event -> getResponse ( ) -> headers -> set ( self :: HEADER_NAME , $ this -> requestId -> get ( ) ) ; }
If enabled, sets the request ID on the appropriate response header.

@param FilterResponseEvent $event
If enabled sets the request ID on the appropriate response header .