public function googleVerifAction( $key )
    {
        if ( $this->getConfigResolver()->getParameter( 'google_verification', 'nova_ezseo' ) != $key )
        {
            throw new NotFoundHttpException( "Google Verification Key not found" );
        }
        $response = new Response();
        $response->setSharedMaxAge( 24 * 3600 );
        $response->setContent( "google-site-verification: google{$key}.html" );
        return $response;
    }