HTTP头字段被注册在“消息头”注册表中,保留在http://www.iana.org/assignments/message-headers/。
本文档定义了下列HTTP头字段,所以“永久消息头字段名”注册表已经被更新(查看BCP90)。
+---------------------+----------+----------+-------------+
| Header Field Name | Protocol | Status | Reference |
+---------------------+----------+----------+-------------+
| Authorization | http | standard | Section 4.2 |
| Proxy-Authenticate | http | standard | Section 4.3 |
| Proxy-Authorization | http | standard | Section 4.4 |
| WWW-Authenticate | http | standard | Section 4.1 |
+---------------------+----------+----------+-------------+
修改控制者是“IETF(iesg@ietf.org)国际互联网工程任务组”。