https://github.com/chiroptical/shoebill-app-server/blob/main/src/main/kotlin/app/shoebill/backend/plugins/HTTP.kt I modified this to be

allowHeader("SHOEBILL_SESSION")
allowHost("localhost:3000") // my client
// disabled HSTS

Ugh, I should probably push my example so I don't have to explain all the changes. I'll do that later.

It seems like this shouldn't be that hard. I can get the session set in a post request but I can't use that session in subsequent requests. I just keep getting null when fetching the session.

Minimal example here: https://github.com/chiroptical/reproduce-ktor-issue

This exhibits the exact same problem, but is a much simpler codebase.

Someone suggested a few other things in my Discord server but no luck. Turns out I forgot

Post

and

Get

in the config 🤦 . However, that doesn't change anything. I still get

Nope

when trying to get the session cookie.

Ignore this thread, I am an absolute derp machine. I was making server - server requests not client - server. 🤦