title: Can an HTTP OPTIONS request return a 204 or should it always return 200?
body: <p>According to <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.2" rel="noreferrer">http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.2</a> the only response ever mentioned regarding an HTTP OPTIONS request is a 200. However, there seem to be cases such as when the content-length is 0 that a 204 would be more appropriate. Is it appropriate for an HTTP OPTIONS request to return a 204?</p>