What are the challenges and solutions when implementing authentication flows in Nuxt SSR apps?

Implementing authentication flows in Nuxt SSR apps faces challenges like token handling on both client and server, managing session persistence, and ensuring secure cookie usage.

Common solutions include using HTTP-only cookies for token storage to improve security, implementing middleware or plugins to sync auth state across client and server, and careful refresh token logic with interceptors. Balancing SSR benefits while managing authentication state requires custom strategies and sometimes backend support to handle token validation seamlessly.