HTTP 206 Partial Content vs 421 Misdirected Request
HTTP 206 (Partial Content) is a 2xx Success response, while 421 (Misdirected Request) is a 4xx Client Error response. 206 indicates that the server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming. In contrast, 421 means that the request was directed at a server that is unable to produce a response for the combination of scheme and authority in the URI.
説明
The server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
このコードが表示される場合
During video streaming, large file downloads, or when resuming interrupted downloads.
解決方法
No fix needed. This is normal behavior for range requests.
説明
The request was directed at a server that is unable to produce a response for the combination of scheme and authority in the URI.
このコードが表示される場合
With HTTP/2 when a connection is reused for a domain the certificate doesn't cover.
解決方法
Retry the request on a new connection.
主な違い
206 is a 2xx Success response, while 421 is a 4xx Client Error response.
HTTP 206: The server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
HTTP 421: The request was directed at a server that is unable to produce a response for the combination of scheme and authority in the URI.
You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
You encounter 421 when with HTTP/2 when a connection is reused for a domain the certificate doesn't cover.
どちらをいつ使うか
For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 421 (Misdirected Request): Retry the request on a new connection.