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.
Mô tả
The response payload has been modified by a transforming proxy from the origin server's 200 response.
Khi bạn thấy mã này
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
Cách khắc phục
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Mô tả
The request requires user authentication. The response includes a WWW-Authenticate header indicating the authentication scheme.
Khi bạn thấy mã này
When accessing a protected resource without credentials or with expired tokens.
Cách khắc phục
Include valid authentication credentials (API key, Bearer token, Basic auth) in the Authorization header.
Sự khác biệt chính
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.
Khi nào dùng cái nào
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.