HTTP 100 Continue vs 403 Forbidden
HTTP 100 (Continue) is a 1xx Informational response, while 403 (Forbidden) is a 4xx Client Error response. 100 indicates that the server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected. In contrast, 403 means that the server understood the request but refuses to authorize it. Unlike 401, authentication will not help — the user simply does not have permission.
Description
The server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected.
Quand vous le voyez
When a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
Comment résoudre
This is an interim response — no fix needed. The client should continue sending the request body.
Description
The server understood the request but refuses to authorize it. Unlike 401, authentication will not help — the user simply does not have permission.
Quand vous le voyez
When trying to access a resource you're authenticated for but don't have permission to access.
Comment résoudre
Check your user role/permissions. Contact the admin to request access.
Différences clés
100 is a 1xx Informational response, while 403 is a 4xx Client Error response.
HTTP 100: The server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected.
HTTP 403: The server understood the request but refuses to authorize it. Unlike 401, authentication will not help — the user simply does not have permission.
You encounter 100 when when a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
You encounter 403 when when trying to access a resource you're authenticated for but don't have permission to access.
Quand utiliser lequel
For 100 (Continue): This is an interim response — no fix needed. The client should continue sending the request body. For 403 (Forbidden): Check your user role/permissions. Contact the admin to request access.