WKSecurity object consists of a host name, a protocol, and a port number. A first-party load is any load URL has the same security origin as the requesting web site. First-party webpages can access each other’s resources such as scripts and databases.
- iOS 9.0+
- macOS 10.11+
An instance of this class is a transient, data-only object; it does not uniquely identify a security origin across multiple delegate method calls.