HTTP 203 Non-Authoritative Information vs 401 Unauthorized
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 401 (Unauthorized) is a 4xx Client Error response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 401 means that the request requires user authentication. The response includes a WWW-Authenticate header indicating the authentication scheme.
설명
The response payload has been modified by a transforming proxy from the origin server's 200 response.
이 코드를 보게 되는 경우
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
해결 방법
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
설명
The request requires user authentication. The response includes a WWW-Authenticate header indicating the authentication scheme.
이 코드를 보게 되는 경우
When accessing a protected resource without credentials or with expired tokens.
해결 방법
Include valid authentication credentials (API key, Bearer token, Basic auth) in the Authorization header.
주요 차이점
203 is a 2xx Success response, while 401 is a 4xx Client Error response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 401: The request requires user authentication. The response includes a WWW-Authenticate header indicating the authentication scheme.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 401 when when accessing a protected resource without credentials or with expired tokens.
언제 어떤 것을 사용할지
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 401 (Unauthorized): Include valid authentication credentials (API key, Bearer token, Basic auth) in the Authorization header.