我正在使用SocketIoClientDotNet（1.0.5）编写Xamarin.Forms应用程序。套接字IO返回连接错误，如下所示：
Quobject.EngineIoClientDotNet.Client.EngineIOException: xhr poll error
---> System.Net.Http.HttpRequestException: An error occurred while sending the request
---> System.Net.WebException: Error: TrustFailure (A call to SSPI failed, see inner exception.)
---> System.Security.Authentication.AuthenticationException: A call to SSPI failed, see inner exception.
---> Mono.Btls.MonoBtlsException: Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED
at /Users/builder/jenkins/workspace/xamarin-android-d15-9/xamarin-android/external/mono/external/boringssl/ssl/handshake_client.c:1132
at Mono.Btls.MonoBtlsContext.ProcessHandshake () [0x00038] in <3e9b3e26c4694baab3f689687ad40612>:0
at Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake (Mono.Net.Security.AsyncOperationStatus status) [0x0003e] in <3e9b3e26c4694baab3f689687ad40612>:0
at (wrapper remoting-invoke-with-check) Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake(Mono.Net.Security.AsyncOperationStatus)
at Mono.Net.Security.AsyncHandshakeRequest.Run (Mono.Net.Security.AsyncOperationStatus status) [0x00006] in <3e9b3e26c4694baab3f689687ad40612>:0
at Mono.Net.Security.AsyncProtocolRequest+<ProcessOperation>d__24.MoveNext () [0x000ff] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at Mono.Net.Security.AsyncProtocolRequest+<StartOperation>d__23.MoveNext () [0x0008b] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of inner exception stack trace ---
at Mono.Net.Security.MobileAuthenticatedStream+<ProcessAuthentication>d__47.MoveNext () [0x00254] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at Mono.Net.Security.MonoTlsStream+<CreateStream>d__17.MoveNext () [0x00126] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.WebConnection+<CreateStream>d__18.MoveNext () [0x001ba] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of inner exception stack trace ---
at System.Net.WebConnection+<CreateStream>d__18.MoveNext () [0x0021a] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.WebConnection+<InitConnection>d__19.MoveNext () [0x00141] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.WebOperation+<Run>d__57.MoveNext () [0x0009a] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.WebCompletionSource`1+<WaitForCompletion>d__15[T].MoveNext () [0x00094] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.HttpWebRequest+<RunWithTimeoutWorker>d__241`1[T].MoveNext () [0x000c5] in <3e9b3e26c4694baab3f689687ad40612>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.HttpWebRequest.EndGetResponse (System.IAsyncResult asyncResult) [0x00020] in <3e9b3e26c4694baab3f689687ad40612>:0
at System.Threading.Tasks.TaskFactory`1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func`2[T,TResult] endFunction, System.Action`1[T] endAction, System.Threading.Tasks.Task`1[TResult] promise, System.Boolean requiresSynchronization) [0x0000f] in <d4a23bbd2f544c30a48c44dd622ce09f>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.Http.HttpClientHandler+<SendAsync>d__64.MoveNext () [0x0041d] in <25ebe1083eaf4329b5adfdd5bbb7aa57>:0
--- End of inner exception stack trace ---
at System.Net.Http.HttpClientHandler+<SendAsync>d__64.MoveNext () [0x00478] in <25ebe1083eaf4329b5adfdd5bbb7aa57>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Net.Http.HttpClient+<SendAsyncWorker>d__49.MoveNext () [0x000ca] in <25ebe1083eaf4329b5adfdd5bbb7aa57>:0
--- End of stack trace from previous location where exception was thrown ---
at Quobject.EngineIoClientDotNet.Client.Transports.PollingXHR+XHRRequest+<>c__DisplayClass6_0+<<Create>b__0>d.MoveNext () [0x00209] in <11e1586a110441f69ce7a2b5302d7b47>:0
--- End of inner exception stack trace ---
带有socket.io的node.js服务器与express.js可以正常工作，后者将cookie作为登录信息。在App版本中，如何将登录信息作为Cookie传递？