HTTP 205 Reset Content vs 502 Bad Gateway
HTTP 205 (Reset Content) is a 2xx Success response, while 502 (Bad Gateway) is a 5xx Server Error response. 205 indicates that the server fulfilled the request and the client should reset the document view (e.g., clear a form). In contrast, 502 means that the server, acting as a gateway or proxy, received an invalid response from the upstream server.
説明
The server fulfilled the request and the client should reset the document view (e.g., clear a form).
このコードが表示される場合
After form submissions where the server wants the client to reset the form for new input.
解決方法
The client should clear the form or reset the view. Rarely used in practice.
説明
The server, acting as a gateway or proxy, received an invalid response from the upstream server.
このコードが表示される場合
When Nginx/Apache can't reach the application server (e.g., Gunicorn is down, upstream timeout).
解決方法
Check if the upstream server is running. Verify proxy configuration. Check for upstream timeouts.
主な違い
205 is a 2xx Success response, while 502 is a 5xx Server Error response.
HTTP 205: The server fulfilled the request and the client should reset the document view (e.g., clear a form).
HTTP 502: The server, acting as a gateway or proxy, received an invalid response from the upstream server.
You encounter 205 when after form submissions where the server wants the client to reset the form for new input.
You encounter 502 when when Nginx/Apache can't reach the application server (e.g., Gunicorn is down, upstream timeout).
どちらをいつ使うか
For 205 (Reset Content): The client should clear the form or reset the view. Rarely used in practice. For 502 (Bad Gateway): Check if the upstream server is running. Verify proxy configuration. Check for upstream timeouts.