ction-3.1"> If-Match: *</a> and
 <a href="https://tools.ietf.org/html/rfc7232#section-3.2"> If-None-Match: *</a> preconditions.

 <p>
 Note that precondition <code>If-None-Match: <i>something</i></code> will never be
 considered to have been met, and it is the application's responsibility to enforce any additional method-specific
 semantics. E.g. a <code>PUT</code> on a resource that does not exist might succeed whereas a <code>GET</code> on a resource
 that does not exist would likely result in a 404 respo