Nuxt SSR + Firebase Authentication deployment on Firebase Hosting

[chiuwah]

Not sure if its Vuefire related problem, but I have the following problem:

I have Nuxt 3 SSR application using Vuefire with admin configured (Firebase service account). Running on localhost it works without problem. But once deployed on Firebase Hosting, I am getting the following error when I try to log in: "auth/login-blocked".

In the devtools I see the following network call error:

message: "The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received an instance of Object"
stack: ""
statusCode: 500
statusMessage: ""
url: "/api/__session"

When I deploy without SSR (ssr: false) I can login, but obviously I am not having the server side authentication working.
Anyone who has a solution?

[chiuwah]

Looks like this is a Firebase Hosting problem with session cookies. Deployment of the same app on Netlify works fine.