HTTP 206 Partial Content vs 304 Not Modified
HTTP 206 (Partial Content) is a 2xx Success response, while 304 (Not Modified) is a 3xx Redirection 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, 304 means that the resource has not been modified since the last request. The client can use its cached copy.
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 resource has not been modified since the last request. The client can use its cached copy.
このコードが表示される場合
When the browser cache is still valid (If-None-Match / If-Modified-Since headers match).
解決方法
No fix needed. This saves bandwidth by confirming the cached version is still current.
主な違い
206 is a 2xx Success response, while 304 is a 3xx Redirection 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 304: The resource has not been modified since the last request. The client can use its cached copy.
You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
You encounter 304 when when the browser cache is still valid (If-None-Match / If-Modified-Since headers match).
どちらをいつ使うか
For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 304 (Not Modified): No fix needed. This saves bandwidth by confirming the cached version is still current.