HTTP 103 Early Hints vs 400 Bad Request
HTTP 103 (Early Hints) is a 1xx Informational response, while 400 (Bad Request) is a 4xx Client Error response. 103 indicates that used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response. In contrast, 400 means that the server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
描述
Used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response.
何时出现
When a server wants the browser to start loading CSS/JS before the full response is ready.
如何修复
No fix needed. This optimization helps speed up page loading.
描述
The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
何时出现
When sending malformed JSON, missing required fields, or invalid query parameters.
如何修复
Check the request body format, validate all required fields, and ensure proper encoding.
主要区别
103 is a 1xx Informational response, while 400 is a 4xx Client Error response.
HTTP 103: Used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response.
HTTP 400: The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
You encounter 103 when when a server wants the browser to start loading CSS/JS before the full response is ready.
You encounter 400 when when sending malformed JSON, missing required fields, or invalid query parameters.
何时使用哪个
For 103 (Early Hints): No fix needed. This optimization helps speed up page loading. For 400 (Bad Request): Check the request body format, validate all required fields, and ensure proper encoding.