HTTP 100 Continue vs 506 Variant Also Negotiates
HTTP 100 (Continue) is a 1xx Informational response, while 506 (Variant Also Negotiates) is a 5xx Server 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, 506 means that the server has an internal configuration error: the chosen variant resource is configured to engage in content negotiation itself.
الوصف
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.
متى تراه
When a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
كيفية الإصلاح
This is an interim response — no fix needed. The client should continue sending the request body.
الوصف
The server has an internal configuration error: the chosen variant resource is configured to engage in content negotiation itself.
متى تراه
Rare. Indicates a misconfigured server-side content negotiation loop.
كيفية الإصلاح
Fix the server's content negotiation configuration.
الفروق الرئيسية
100 is a 1xx Informational response, while 506 is a 5xx Server 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 506: The server has an internal configuration error: the chosen variant resource is configured to engage in content negotiation itself.
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 506 when rare. Indicates a misconfigured server-side content negotiation loop.
متى تستخدم أيًا منهما
For 100 (Continue): This is an interim response — no fix needed. The client should continue sending the request body. For 506 (Variant Also Negotiates): Fix the server's content negotiation configuration.