Backup source of HTTP (No. 4)

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- HTTP Status Code
--  http://www.studyinghttp.net/status_code

-  [[HTTP/2]]

* HTTPメソッド [#method ] [#c6fad4fa]

** PATCH [#patch]

- PATCH メソッド、新しい HTTP Status Code
--  http://d.hatena.ne.jp/ZIGOROu/20120211/1328982756
- 次期RailsがPATCHメソッドを採用
--  http://d.hatena.ne.jp/tkawa/20120325/p1
 9.1.2 冪等{idempotent} なメソッド
 PATCHは、部分更新のためのメソッドですが、冪等でないと規定されています。