HTTP 205 Reset Content vs 451 Unavailable For Legal Reasons
HTTP 205 (Reset Content) is a 2xx Success response, while 451 (Unavailable For Legal Reasons) is a 4xx Client Error response. 205 indicates that the server fulfilled the request and the client should reset the document view (e.g., clear a form). In contrast, 451 means that the server is denying access to the resource as a consequence of a legal demand. Named after Ray Bradbury's Fahrenheit 451.
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 denying access to the resource as a consequence of a legal demand. Named after Ray Bradbury's Fahrenheit 451.
このコードが表示される場合
When content is blocked due to court orders, GDPR requests, or government censorship.
解決方法
No technical fix. The block is legally mandated. Contact the site operator for details.
主な違い
205 is a 2xx Success response, while 451 is a 4xx Client Error response.
HTTP 205: The server fulfilled the request and the client should reset the document view (e.g., clear a form).
HTTP 451: The server is denying access to the resource as a consequence of a legal demand. Named after Ray Bradbury's Fahrenheit 451.
You encounter 205 when after form submissions where the server wants the client to reset the form for new input.
You encounter 451 when when content is blocked due to court orders, GDPR requests, or government censorship.
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 451 (Unavailable For Legal Reasons): No technical fix. The block is legally mandated. Contact the site operator for details.