HTTP headers
Authorization HTTP Header Meaning
Authorization sends credentials for the requested resource.
Meaning
The client is presenting an authentication scheme and credential value.
Where it appears
API clients and browsers send it after authentication or when using bearer tokens, basic auth, or similar schemes.
What to check
Check the auth scheme, token freshness, scope, and whether the server returns a matching WWW-Authenticate challenge on failure.
Example
Authorization: Bearer eyJhbGciOi...