HTTP 203 Non-Authoritative Information vs 505 HTTP Version Not Supported
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 505 (HTTP Version Not Supported) is a 5xx Server Error response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 505 means that the server does not support the HTTP version used in the request.
説明
The response payload has been modified by a transforming proxy from the origin server's 200 response.
このコードが表示される場合
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
解決方法
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
説明
The server does not support the HTTP version used in the request.
このコードが表示される場合
When a client uses an HTTP version the server doesn't support.
解決方法
Use a supported HTTP version (typically HTTP/1.1 or HTTP/2).
主な違い
203 is a 2xx Success response, while 505 is a 5xx Server Error response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 505: The server does not support the HTTP version used in the request.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 505 when when a client uses an HTTP version the server doesn't support.
どちらをいつ使うか
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 505 (HTTP Version Not Supported): Use a supported HTTP version (typically HTTP/1.1 or HTTP/2).