if (url.isHttps && handshake != null) {
          sink.writeByte('\n'.code)
          sink.writeUtf8(handshake.cipherSuite.javaName).writeByte('\n'.code)
          writeCertList(sink, handshake.peerCertificates)
          writeCertList(sink, handshake.localCertificates)
          sink.writeUtf8(handshake.tlsVersion.javaName).writeByte('\n'.code)
        }
      }
    }

    @Throws(IOException::class)