shadowfoxish

Nevermind. I think I misunderstood what structured append actually was. It strings together discrete matricies with some special characters. Seems though, that the code does not find the rectangular CodeSizes,...

Update: I managed to get a debug statement in there, and the token its trying to decode is empty string. I'm continuing to dig..

Okay, the IdP wasn't returning the id_token. That's the primary problem. I do think the error being returned here could be cleaned up though. https://github.com/authts/oidc-client-ts/blob/5edbb90735a3fa627b76be55f9eea50e67212b1f/src/ResponseValidator.ts#L198 const incoming = JwtUtils.decode(response.id_token ??...

Agreed. If someone else encounters the same error, they'll be able to find this thread and resolution. I've been building an IdP and some things in that implementation are still...