The socket.io does not take the necessary cookies when connecting

[makssein]

On the beta.site.com domain I connect to my socket, the connection is successful, but on the server I see cookies only from the .site.com domain, although cookies from the beta.site.com domain should also have arrived, because this is the domain from which the connection is made. Why does this happen and how to fix it?

server:

 this.io = new Server(HTTPServer, {
            cors: {
                origin: process.env.SOCKET_ORIGIN,
                methods: ["GET", "POST"],
                credentials: true,
                transports: ['websocket', 'polling']
            },
            cookie: true,
            allowEIO3: true
        });

client:

socket = io(socketEndPoint, {
        withCredentials: true,
    });

[darrachequesne]

Hi! Did you find a solution?