Compliance:

Compliance:

[1] draft-ietf-http-options-02 - Specification of HTTP/1.1 OPTIONS messages ( 版) <https://tools.ietf.org/html/draft-ietf-http-options-02#section-3.4>

[2] RFC 4229 - HTTP Header Field Registrations ( ( 版)) <http://tools.ietf.org/html/rfc4229#section-2.2.1>