HTTP 200 OK vs 421 Misdirected Request
HTTP 200 (OK) is a 2xx Success response, while 421 (Misdirected Request) is a 4xx Client Error response. 200 indicates that the request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only. 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.
描述
The request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only.
何时出现
The most common HTTP response — indicates the request was processed successfully.
如何修复
No fix needed. The request succeeded as expected.
描述
The request was directed at a server that is unable to produce a response for the combination of scheme and authority in the URI.
何时出现
With HTTP/2 when a connection is reused for a domain the certificate doesn't cover.
如何修复
Retry the request on a new connection.
主要区别
200 is a 2xx Success response, while 421 is a 4xx Client Error response.
HTTP 200: The request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only.
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 200 when the most common HTTP response — indicates the request was processed successfully.
You encounter 421 when with HTTP/2 when a connection is reused for a domain the certificate doesn't cover.
何时使用哪个
For 200 (OK): No fix needed. The request succeeded as expected. For 421 (Misdirected Request): Retry the request on a new connection.