7. IANA 考虑事项 (IANA Considerations)
7.1. 状态码注册 (Status Code Registration)
位于 http://www.iana.org/assignments/http-status-codes 的 "Hypertext Transfer Protocol (HTTP) Status Code Registry" 已用以下注册项更新:
| Value | Description | Reference |
|---|---|---|
| 304 | Not Modified | Section 4.1 |
| 412 | Precondition Failed | Section 4.2 |
7.2. 头字段注册 (Header Field Registration)
HTTP 头字段注册在 http://www.iana.org/assignments/message-headers/ 维护的 "Message Headers" registry 中.
本文档定义以下 HTTP 头字段, 因此 "Permanent Message Header Field Names" registry 已相应更新:
| Header Field Name | Protocol | Status | Reference |
|---|---|---|---|
| ETag | http | standard | Section 2.3 |
| If-Match | http | standard | Section 3.1 |
| If-Modified-Since | http | standard | Section 3.3 |
| If-None-Match | http | standard | Section 3.2 |
| If-Unmodified-Since | http | standard | Section 3.4 |
| Last-Modified | http | standard | Section 2.2 |
变更控制方是: "IETF ([email protected]) - Internet Engineering Task Force".