HTTP 203 Non-Authoritative Information vs 406 Not Acceptable
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 406 (Not Acceptable) 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, 406 means that the server cannot produce a response matching the Accept headers sent by the client.
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 server cannot produce a response matching the Accept headers sent by the client.
Quand vous le voyez
When requesting a content type the server doesn't support (e.g., Accept: application/xml when only JSON is available).
Comment résoudre
Adjust the Accept header to a format the server supports.
Différences clés
203 is a 2xx Success response, while 406 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 406: The server cannot produce a response matching the Accept headers sent by the client.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 406 when when requesting a content type the server doesn't support (e.g., Accept: application/xml when only JSON is available).
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 406 (Not Acceptable): Adjust the Accept header to a format the server supports.