TTP">HTTP</a>]. Specifically, they
    MUST support chunked transfer coding on PUT requests. Servers MAY
    also offer an optional switch from https to SPDY [<a href="#ref-SPDY">SPDY</a>].

    A request is considered successful if the HTTP response code is in
    the 2xx range (e.g. 200 OK, 201 Created), and unsuccessful if an
    error occurred or a condition was not met (response code e.g. 404
    Not Found, 304 Not Modified).

    The root folder of the storage tree is represented by the following
    