[1] [CITE@en[SFSafariViewController user agent | Apple Developer Forums]]
([TIME[2017-03-30 13:44:03 +09:00]])
<https://forums.developer.apple.com/thread/12986>

[2] [CITE@ja[SFSafariViewControllerとSafariがcookieを共有しているかの調査 - しめ鯖日記]]
( ([TIME[2017-05-29 01:54:51 +09:00]]))
<http://llcc.hatenablog.com/entry/2017/04/18/195327>

[3] [CITE@en[SFSafariViewController - SafariServices | Apple Developer Documentation]]
([TIME[2017-10-09 13:23:52 +09:00]])
<https://developer.apple.com/documentation/safariservices/sfsafariviewcontroller>