Tells the delegate that assistance is required of the application to respond to an authentication challenge.
- iOS 8.0+
- macOS 10.10+
- Mac Catalyst 13.0+
- tvOS 9.0+
The resource loader.
The authentication challenge.
true if the resource loader should wait for a response to the authentication challenge; otherwise
Delegates receive this message when assistance is required of the application to respond to an authentication challenge.
true if you expect a response either subsequently or immediately to the authenticationChallenger object’s sender.
If you intend to respond to the authentication challenge after your handling of
resource returns, you must retain the authenticationChallenge until after your response has been made.