HTTP 203 Non-Authoritative Information vs 405 Method Not Allowed
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 405 (Method Not Allowed) 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, 405 means that the HTTP method is not allowed for the requested resource. The response includes an Allow header listing valid methods.
Description
The response payload has been modified by a transforming proxy from the origin server's 200 response.
Quand vous le voyez
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
Comment résoudre
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Description
The HTTP method is not allowed for the requested resource. The response includes an Allow header listing valid methods.
Quand vous le voyez
When sending POST to a read-only endpoint, or DELETE to a non-deletable resource.
Comment résoudre
Check the Allow response header for supported methods. Use the correct HTTP method.
Différences clés
203 is a 2xx Success response, while 405 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 405: The HTTP method is not allowed for the requested resource. The response includes an Allow header listing valid methods.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 405 when when sending POST to a read-only endpoint, or DELETE to a non-deletable resource.
Quand utiliser lequel
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 405 (Method Not Allowed): Check the Allow response header for supported methods. Use the correct HTTP method.