HTTP 103 Early Hints vs 406 Not Acceptable
HTTP 103 (Early Hints) is a 1xx Informational response, while 406 (Not Acceptable) 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, 406 means that the server cannot produce a response matching the Accept headers sent by the client.
Описание
Used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response.
Когда вы это видите
When a server wants the browser to start loading CSS/JS before the full response is ready.
Как исправить
No fix needed. This optimization helps speed up page loading.
Описание
The server cannot produce a response matching the Accept headers sent by the client.
Когда вы это видите
When requesting a content type the server doesn't support (e.g., Accept: application/xml when only JSON is available).
Как исправить
Adjust the Accept header to a format the server supports.
Ключевые различия
103 is a 1xx Informational response, while 406 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 406: The server cannot produce a response matching the Accept headers sent by the client.
You encounter 103 when when a server wants the browser to start loading CSS/JS before the full response is ready.
You encounter 406 when when requesting a content type the server doesn't support (e.g., Accept: application/xml when only JSON is available).
Когда что использовать
For 103 (Early Hints): No fix needed. This optimization helps speed up page loading. For 406 (Not Acceptable): Adjust the Accept header to a format the server supports.