Token refresh 500

@michielbdejong I am seeing 500s on the /token endpoint when solid-auth-fetcher tries to renew the token, as well as a 401. The server logs are set to verbose, but don't show the 500, only the 401. I am not sure which headers I can safely include in a message, so opted to not include any. Do you have any suggestions about how to add additional logging to debug this issue more?

Client requests / responses:

POST https://myunderstory.com/token 500
data:
grant_type: refresh_token
refresh_token: REDACTED
client_id: REDACTED

GET https://ian.myunderstory.com/inbox/ 401

Server logs:

2021-04-02T21:24:54.369Z solid:server Display login-required for https://ian.myunderstory.com/private/apps/understory/garden/workspace/default/prefs.ttl
2021-04-02T21:24:56.115Z solid:ACL Using ACL https://ian.myunderstory.com/private/.acl for ./apps/understory/garden/workspace/default/prefs.ttl
2021-04-02T21:24:56.115Z solid:ACL 1 default authentications about https://ian.myunderstory.com/private/ in https://ian.myunderstory.com/private/.acl
2021-04-02T21:24:56.162Z solid:ACL accessDenied: checking access to https://ian.myunderstory.com/private/apps/understory/garden/workspace/default/prefs.ttl by null and origin https://understory.garden
2021-04-02T21:24:56.162Z solid:ACL 1 default authentications about https://ian.myunderstory.com/private/ in https://ian.myunderstory.com/private/.acl
2021-04-02T21:24:56.162Z solid:ACL Checking auth https://ian.myunderstory.com/private/.acl#owner with agent null
2021-04-02T21:24:56.162Z solid:ACL Agent or group: Fail: not public and not logged on.
2021-04-02T21:24:56.162Z solid:ACL The agent/group check fails
2021-04-02T21:24:56.162Z solid:ACL Check failed: User Unauthorized
2021-04-02T21:24:56.162Z solid:ACL accessDenied: modeURIorReasons: ["User Unauthorized"]
2021-04-02T21:24:56.162Z solid:ACL checking http://www.w3.org/ns/auth/acl#Read
2021-04-02T21:24:56.162Z solid:ACL MODE REQUIRED NOT ALLOWED: http://www.w3.org/ns/auth/acl#Read Denying with User Unauthorized
2021-04-02T21:24:56.162Z solid:ACL Read access denied to (none): undefined - Unauthorized
2021-04-02T21:24:56.162Z solid:server Error page because of: { Error: Unauthorized
at AuthenticatedRequest.unauthorized (/opt/solid/node_modules/@solid/oidc-rs/src/AuthenticatedRequest.js:761:19)
at validateExpiry (/opt/solid/node_modules/@solid/oidc-rs/src/AuthenticatedRequest.js:627:22)
handled: true,
statusCode: 401,
realm: 'https://myunderstory.com',
error: 'invalid_token',
error_description: 'Access token is expired',
error_uri: undefined }

Comienza en el endpoint /token y sigue la solicitud de refresh token de solid-auth-fetcher. Compara su respuesta 500 con el stack trace 401 mostrado, especialmente AuthenticatedRequest.js en torno a validateExpiry y unauthorized. Se considera terminado cuando el fallo es reproducible y el error relevante aparece en los registros del servidor.