3.1.5.3 Depth "noroot" Request Header Extension

The WebDAV client SHOULD add the Depth request header with a value of '1,noroot' or 'infinity,noroot' to a request if the WebDAV client needs the resources that are in the container, but not in the container itself; otherwise this header SHOULD be omitted.<9> A resource is an entity that can be identified by a URI. A resource is used as specified in [RFC2616] section 1.3.