HTTP 100 Continue vs 508 Loop Detected
HTTP 100 (Continue) is a 1xx Informational response, while 508 (Loop Detected) 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, 508 means that the server detected an infinite loop while processing the request (WebDAV).
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.
When You See It
When a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
How to Fix
This is an interim response — no fix needed. The client should continue sending the request body.
Description
The server detected an infinite loop while processing the request (WebDAV).
When You See It
When WebDAV encounters circular references in bindings.
How to Fix
Fix the circular reference in the WebDAV configuration.
Key Differences
100 is a 1xx Informational response, while 508 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 508: The server detected an infinite loop while processing the request (WebDAV).
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 508 when when WebDAV encounters circular references in bindings.
When to Use Which
For 100 (Continue): This is an interim response — no fix needed. The client should continue sending the request body. For 508 (Loop Detected): Fix the circular reference in the WebDAV configuration.