HTTP 205 Reset Content vs 303 See Other
HTTP 205 (Reset Content) is a 2xx Success response, while 303 (See Other) is a 3xx Redirection response. 205 indicates that the server fulfilled the request and the client should reset the document view (e.g., clear a form). In contrast, 303 means that the server is redirecting to a different resource using GET, typically after a POST operation (Post/Redirect/Get pattern).
説明
The server fulfilled the request and the client should reset the document view (e.g., clear a form).
このコードが表示される場合
After form submissions where the server wants the client to reset the form for new input.
解決方法
The client should clear the form or reset the view. Rarely used in practice.
説明
The server is redirecting to a different resource using GET, typically after a POST operation (Post/Redirect/Get pattern).
このコードが表示される場合
After form submissions to prevent resubmission on browser refresh.
解決方法
Follow the Location header with a GET request. This is intentional — part of the PRG pattern.
主な違い
205 is a 2xx Success response, while 303 is a 3xx Redirection response.
HTTP 205: The server fulfilled the request and the client should reset the document view (e.g., clear a form).
HTTP 303: The server is redirecting to a different resource using GET, typically after a POST operation (Post/Redirect/Get pattern).
You encounter 205 when after form submissions where the server wants the client to reset the form for new input.
You encounter 303 when after form submissions to prevent resubmission on browser refresh.
どちらをいつ使うか
For 205 (Reset Content): The client should clear the form or reset the view. Rarely used in practice. For 303 (See Other): Follow the Location header with a GET request. This is intentional — part of the PRG pattern.