HTTP 203 Non-Authoritative Information vs 502 Bad Gateway
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 502 (Bad Gateway) 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, 502 means that the server, acting as a gateway or proxy, received an invalid response from the upstream server.
Beschreibung
The response payload has been modified by a transforming proxy from the origin server's 200 response.
Wann Sie es sehen
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
Wie man es behebt
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Beschreibung
The server, acting as a gateway or proxy, received an invalid response from the upstream server.
Wann Sie es sehen
When Nginx/Apache can't reach the application server (e.g., Gunicorn is down, upstream timeout).
Wie man es behebt
Check if the upstream server is running. Verify proxy configuration. Check for upstream timeouts.
Wesentliche Unterschiede
203 is a 2xx Success response, while 502 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 502: The server, acting as a gateway or proxy, received an invalid response from the upstream server.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 502 when when Nginx/Apache can't reach the application server (e.g., Gunicorn is down, upstream timeout).
Wann welchen verwenden
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 502 (Bad Gateway): Check if the upstream server is running. Verify proxy configuration. Check for upstream timeouts.