[1] SFSafariViewController user agent | Apple Developer Forums () https://forums.developer.apple.com/thread/12986
[2] SFSafariViewControllerとSafariがcookieを共有しているかの調査 - しめ鯖日記 ( ()) http://llcc.hatenablog.com/entry/2017/04/18/195327
[3] SFSafariViewController - SafariServices | Apple Developer Documentation () https://developer.apple.com/documentation/safariservices/sfsafariviewcontroller