Flutter web socket connection problem on wasm

[Flattih]

Update: flutter run -d chrome works fine.
But it doesn't work with web assembly flutter run -d chrome --wasm

Update 2: WASM works on production.

socket_io_client: ^3.0.2
socket.io: 4.8.1 nodejs
Flutter version 3.24.5
Dart version 3.5.4
Nodejs version 18.17.0

I cannot connect to the socket on the web, it works fine on Android and iOS. I'm trying to establish a socket connection with flutter web for the first time. Is there something I don't know? I leave my client and server codes below. It gives no transport available error on the web.

NodeJS

const io = require("socket.io")(server, {
  cors: {
    origin: "*",
    methods: ["GET", "POST"],
    transports: ["websocket"],
    
  },
});

io.on("connection", (socket) => {
  socket.on("setup", (userId) => {
    console.log("User online setup ", userId);
    socket.join(userId);
    if (
      userId !== null &&
      userId !== undefined &&
      users.indexOf(userId) === -1
    ) {
      users.push(userId);
      console.log("pushed user", userId);
      io.emit("online", users);
    }
  });
}

DART

class SocketHelper {
  io.Socket? socket;
  static SocketHelper? _instance;

  SocketHelper._internal() {
    socket = io.io("url", <String, dynamic>{
      'transports': ['websocket'],
      'autoConnect': false,
    });
    socket!.connect();
  }

  static SocketHelper get instance {
    _instance ??= SocketHelper._internal();
    return _instance!;
  }

  void setup(WidgetRef ref) {
    socket?.emit("setup", ref.read(userProvider)?.id);
  }

[hnvn]

@Flattih I faced the same issue on WASM, have you resolved this issue yet?

[Flattih]

@hnvn I made my improvements with flutter run -d chrome. I built it with WASM and deployed it with Firebase. It works in live mode, but WASM doesn't work in debug mode. I couldn't find a solution.

[hnvn]

I keep getting the error No transports available on WASM mode, if I run it in normal web mode (without WASM) then everything works fine

[Flattih]

@hnvn Yes, I experienced the exact same situation as you. ::)