Problem Statement
List common J W T implementation pitfalls and how to avoid them.
Explanation
Frequent mistakes include accepting tokens without verifying signature, using none or weak algorithms, failing to check audience and issuer, and giving tokens very long lifetimes. Others include storing tokens where scripts can read them, not rotating keys, and mixing authentication and authorization data without care. Fix these by enforcing strong algorithms, validating signature and claims on every call, keeping tokens short-lived with refresh where needed, storing tokens in secure httpOnly cookies, and rotating signing keys. Use reputable libraries and follow cheat-sheet guidance.
Code Solution
SolutionRead Only
Verify: alg=RS256; check iss/aud/exp/nbf; reject none; rotate kid keys; token TTL minutes, not days
