HTTP 204 No Content vs 417 Expectation Failed
HTTP 204 (No Content) is a 2xx Success response, while 417 (Expectation Failed) 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, 417 means that the server cannot meet the requirements of the Expect header.
Descripción
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.
Cuándo lo verás
After DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
Cómo solucionarlo
No fix needed. The action was successful; there is simply no content to return.
Descripción
The server cannot meet the requirements of the Expect header.
Cuándo lo verás
When the server doesn't support Expect: 100-continue.
Cómo solucionarlo
Remove the Expect header from your request.
Diferencias clave
204 is a 2xx Success response, while 417 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 417: The server cannot meet the requirements of the Expect header.
You encounter 204 when after DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
You encounter 417 when when the server doesn't support Expect: 100-continue.
Cuándo usar cada uno
For 204 (No Content): No fix needed. The action was successful; there is simply no content to return. For 417 (Expectation Failed): Remove the Expect header from your request.