HTTP 208 Already Reported vs 226 IM Used
Both HTTP 208 (Already Reported) and 226 (IM Used) belong to the 2xx Success category. 208 indicates that used inside a DAV: propstat response element to avoid enumerating internal members of multiple bindings to the same collection repeatedly. Meanwhile, 226 means that the server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations.
Description
Used inside a DAV: propstat response element to avoid enumerating internal members of multiple bindings to the same collection repeatedly.
When You See It
In WebDAV responses to avoid duplicate listings.
How to Fix
No fix needed. This prevents redundant data in multi-status responses.
Description
The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations.
When You See It
When using delta encoding to reduce bandwidth.
How to Fix
Rarely encountered. The response uses Instance Manipulations (IM) as specified.
Key Differences
HTTP 208: Used inside a DAV: propstat response element to avoid enumerating internal members of multiple bindings to the same collection repeatedly.
HTTP 226: The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations.
You encounter 208 when in WebDAV responses to avoid duplicate listings.
You encounter 226 when when using delta encoding to reduce bandwidth.
When to Use Which
For 208 (Already Reported): No fix needed. This prevents redundant data in multi-status responses. For 226 (IM Used): Rarely encountered. The response uses Instance Manipulations (IM) as specified.