If a collection in a WebDAV-enabled area contains an index.html (or whatever filename is specified in DirectoryIndex) then it becomes impossible to use WebDAV methods on that collection: you cannot PROPFIND it, MOVE it, DELETE it, etc. All of these result in a 405 Method Not Allowed error. e.g., this series of operations, starting from an empty directory "/wiml": MKCOL /wiml/bugzillaPF/ --> 201 Cr