Top 700 technical problems

API returns 401 even though JWT token is present

API returns 403 for user with correct role

Refresh token works once and then becomes invalid

OAuth redirect enters an infinite login loop

API request works in Postman but fails in browser

API returns different response after reverse proxy

API rate limit triggers too quickly behind shared IP

JWT appears valid but backend rejects signature

User stays logged in after access should have expired

Login works but authenticated API calls still fail