HTTP 204 No Content vs 406 Not Acceptable
HTTP 204 (No Content) is a 2xx Success response, while 406 (Not Acceptable) is a 4xx Client Error response. 204 indicates that the server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body. In contrast, 406 means that the server cannot produce a response matching the Accept headers sent by the client.
Description
The server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body.
Quand vous le voyez
After DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
Comment résoudre
No fix needed. The action was successful; there is simply no content to return.
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
204 is a 2xx Success response, while 406 is a 4xx Client Error response.
HTTP 204: The server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body.
HTTP 406: The server cannot produce a response matching the Accept headers sent by the client.
You encounter 204 when after DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
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 204 (No Content): No fix needed. The action was successful; there is simply no content to return. For 406 (Not Acceptable): Adjust the Accept header to a format the server supports.