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Discussion on: How do you share authentication in micro-frontends

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Klee Thomas Author

To my understanding is that the 1px iframe method is the best way to get fresh access, identity and rotating refresh tokens (if required / supported) without having your user see the redirects that are happening as they move between multiple applications that are masquerading as a single user experience.

This method is for micro front ends, where multiple distinct front + back end stacks work as a single seamless experience for a user. For different application architectures I would consider different implementations. For instance I wouldn't use it if I had a single server that multiple front ends communicated with a single back end I would consider HTTPOnly cookies.