401/403 responses, refresh tokens, OAuth loops, rate limits, and JWT signatures.
APIsintermediate
API returns 401 even though JWT token is present
RESTJWT
APIsintermediate
API returns 403 for user with correct role
RESTJWT
APIsintermediate
Refresh token works once and then becomes invalid
RESTJWT
APIsintermediate
OAuth redirect enters an infinite login loop
RESTJWTOAuth
APIsintermediate
API request works in Postman but fails in browser
RESTJWTPostman
APIsintermediate
API returns different response after reverse proxy
RESTJWT
APIsintermediate
API rate limit triggers too quickly behind shared IP
RESTJWT
APIsintermediate
JWT appears valid but backend rejects signature
RESTJWT
APIsintermediate
User stays logged in after access should have expired
RESTJWT
APIsintermediate
Login works but authenticated API calls still fail
RESTJWT
