         let request = session.request(urlRequest)
         request.cURLDescription(calling: { log.debug($0) })
         request.responseData {
-            log.debug($0.debugDescription)
+            // log.debug($0.debugDescription)
             switch $0.result {
             case .success(let data):
                 guard let embedded = NicoUtility.extractEmbeddedDataPropertiesFromLivePage(html: data) else {

            selector: #selector(NicoUtility.pingPongCheckTimerFired),
            userInfo: nil,
            repeats: true)
        log.debug("Started last-pong check timer.")
    }

    func stopPingPongCheckTimer() {

    private(set) var live: Live?

    // Private Properties
    private var isConnected = false
    private var connectRequests: ConnectRequests =
        ConnectRequests(
            onGoing: nil,
