How can I use it with Firebase?

[Secbone]

@baorv I did not develop with firebase before, is there any problem?

[baorv]

Firebase Hosting strips all cookies from the request other than __session. So I can't use cookies that send from the client. You can see from this topic: https://stackoverflow.com/a/44935288

[Secbone]

@baorv did your try to set session key to __session ?

app.use(session({
    key: '__session',
}));