Hi @DannyIsYog ,
Thank you for your reply!
I set the timeout as you suggested, but the result was the same 
using System;
using UnityEngine;
namespace Nakama.Snippets
{
// ReSharper disable once InconsistentNaming
public class WebGLConnect : MonoBehaviour
{
private const string SessionTokenKey = "nksession";
private const string UdidKey = "udid";
private IClient _client;
private ISocket _socket;
public string serverText;
public string serverPortText;
public async void Awake()
{
try
{
const string scheme = "http";
string host = serverText;
int port = Int32.Parse(serverPortText);
const string serverKey = "defaultkey";
_client = new Client(scheme, host, port, serverKey, UnityWebRequestAdapter.Instance);
_client.Timeout = 10; //Set timeout
_socket = _client.NewSocket();
_socket.Closed += () => Debug.Log("Socket closed.");
_socket.Connected += () => Debug.Log("Socket connected.");
_socket.ReceivedError += e => Debug.Log("Socket error: " + e.Message);
// Cant use SystemInfo.deviceUniqueIdentifier with WebGL builds.
var udid = PlayerPrefs.GetString(UdidKey, Guid.NewGuid().ToString());
Debug.Log("Unique Device ID: " + udid);
ISession session;
var sessionToken = PlayerPrefs.GetString(SessionTokenKey);
if (string.IsNullOrEmpty(sessionToken) || (session = Session.Restore(sessionToken)).IsExpired)
{
Debug.Log("@@@@@@@@@@@@@@@ authenticate device start");
session = await _client.AuthenticateDeviceAsync(udid);
Debug.Log("@@@@@@@@@@@@@@@ authenticate device end");
PlayerPrefs.SetString(UdidKey, udid);
PlayerPrefs.SetString(SessionTokenKey, session.AuthToken);
}
Debug.Log("Session Token: " + session.AuthToken);
await _socket.ConnectAsync(session, true);
Debug.Log("Connected ");
var match = await _socket.CreateMatchAsync();
Debug.Log("Created match: " + match.Id);
await _socket.CloseAsync();
}
catch (Exception e)
{
Debug.LogError("Exception occurred: " + e.ToString());
}
}
private void OnApplicationQuit()
{
_socket?.CloseAsync();
}
}
}
So I modified SendRequest in UnityWebRequestAdapter to print console log:
private static IEnumerator SendRequest(UnityWebRequest www, Action<string> callback,
Action<ApiResponseException> errback)
{
Debug.Log($"@@@@@@@@@@@@@ Sending request: {www.method} {www.url}"); //check the request
yield return www.SendWebRequest();
Debug.Log($"@@@@@@@@@@@@@ Response: {www.responseCode} {www.downloadHandler.text}"); //check the response
if (IsNetworkError(www))
{
Debug.Log($"@@@@@@@@@@@@@ Network error: {www.error}"); //check the error
errback(new ApiResponseException(www.error));
}
else if (IsHttpError(www))
{
if (www.responseCode >= 500)
{
// TODO think of best way to map HTTP code to GRPC code since we can't rely
// on server to process it. Manually adding the mapping to SDK seems brittle.
errback(new ApiResponseException((int) www.responseCode, www.downloadHandler.text, -1));
www.Dispose();
yield break;
}
var decoded = www.downloadHandler.text.FromJson<Dictionary<string, object>>();
var e = new ApiResponseException(www.downloadHandler.text);
if (decoded != null)
{
var msg = decoded.ContainsKey("message") ? decoded["message"].ToString() : string.Empty;
var grpcCode = decoded.ContainsKey("code") ? (int) decoded["code"] : -1;
e = new ApiResponseException(www.responseCode, msg, grpcCode);
if (decoded.ContainsKey("error"))
{
IHttpAdapterUtil.CopyResponseError(Instance, decoded["error"], e);
}
}
errback(e);
}
else
{
callback?.Invoke(www.downloadHandler?.text);
}
www.Dispose();
}
and I could check browser console messages like this:
f386f3dcd5f6d63f3dc8c44f92bdecaf.js.gz:10 @@@@@@@@@@@@@@@ authenticate device start
UnityEngine.DebugLogHandler:Internal_Log(LogType, LogOption, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
Nakama.Snippets.<Awake>d__6:MoveNext()
System.Runtime.CompilerServices.AsyncVoidMethodBuilder:Start(<Awake>d__6&)
Nakama.Snippets.WebGLConnect:Awake()
f386f3dcd5f6d63f3dc8c44f92bdecaf.js.gz:10 @@@@@@@@@@@@@ Sending request: POST http://localhost:7350/v2/account/authenticate/device?create=true&
UnityEngine.DebugLogHandler:Internal_Log(LogType, LogOption, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
Nakama.<SendRequest>d__13:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
UnityEngine.MonoBehaviour:StartCoroutineManaged2(IEnumerator)
UnityEngine.MonoBehaviour:StartCoroutine(IEnumerator)
Nakama.UnityWebRequestAdapter:SendAsync(String, Uri, IDictionary`2, Byte[], Int32, Nullable`1)
Nakama.<AuthenticateDeviceAsync>d__13:MoveNext()
System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1:Start(<AuthenticateDeviceAsync>d__13&)
Nakama.ApiClient:AuthenticateDeviceAsync(String, String, ApiAccountDevice, Nullable`1, String, Nullable`1)
Nakama.<>c__DisplayClass46_0:<AuthenticateDeviceAsync>b__0()
Nakama.<InvokeWithRetry>d__2`1:MoveNext()
System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1:Start(<InvokeWithRetry>d__2`1&)
Nakama.RetryInvoker:InvokeWithRetry(Func`1, RetryHistory)
Nakama.<AuthenticateDeviceAsync>d__46:MoveNext()
System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1:Start(<AuthenticateDeviceAsync>d__46&)
Nakama.Client:AuthenticateDeviceAsync(String, String, Boolean, Dictionary`2, RetryConfiguration, CancellationToken)
Nakama.Snippets.<Awake>d__6:MoveNext()
System.Runtime.CompilerServices.AsyncVoidMethodBuilder:Start(<Awake>d__6&)
Nakama.Snippets.WebGLConnect:Awake()
WebGL_Test.loader.js:1 [UnityCache] 'http://localhost:59310/Build/ad4923f1c5efdd2594ec8d6bc490335d.data.gz' successfully downloaded and stored in the indexedDB cache
:7350/v2/account/authenticate/device?create=true&:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI
f386f3dcd5f6d63f3dc8c44f92bdecaf.js.gz:10 @@@@@@@@@@@@@ Response: 500
UnityEngine.DebugLogHandler:Internal_Log(LogType, LogOption, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
Nakama.<SendRequest>d__13:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
f386f3dcd5f6d63f3dc8c44f92bdecaf.js.gz:10 @@@@@@@@@@@@@ Network error: Unknown Error
UnityEngine.DebugLogHandler:Internal_Log(LogType, LogOption, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
Nakama.<SendRequest>d__13:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
Maybe I guess the error callback is executed, but it doesn’t seem to be passed. 
