NEW PREFERENCE - location

o  Preference: location

o  Value: One of either "redirect" or "stay"

o  Description: In state change requests, the client prefers the server to
return either a
      redirect status code or a 2xx status code when a response contains a
Location
      header. The value "redirect" indicates a 303 See Other should be
returned. The value
      "stay" indicates an appropriate 2xx status should be returned.

o  Reference: HTTP/1.1: Semantics and Content, section 4.4.4 303 See Other
      [https://tools.ietf.org/html/rfc7231#section-6.4.4]

o  Notes: This preference is intended to be used with HTTP methods that
return a Location
      header and either a 303 or a 2xx status code.

      This preference supports the Post/Redirect/Get pattern. Wikipedia's
entry for this
      pattern explains it's value in client interactions. See
      https://en.wikipedia.org/wiki/Post/Redirect/Get for details.