This is Jian Wu from NIO, we developed an internal app with React Front-end using Okta Signin Widget and Node RESTful API Server using Okta JWTVerifier.
When we integrated our app with Okta NIO Authorization Server, we caught the JwksError with OktaJWTVerifier, you can find more info about it in this link:
What I found is that is caused by jwksClient failed to fetch keys from jwksUri which pointing to Okta NIO Authorization Server.
Please provide a solution or fix to this problem. Otherwise, it means that we can not use OktaJWTVerifier for a production environment with real Okta Authorization Server.
Thanks in advance!