Support for prefersEphemeralWebBrowserSession #61
Description
iOS 13 introduces the new prefersEphemeralWebBrowserSession property on ASWebAuthenticationSession.
Setting this property to true indicates you don't want to share any cookies or browsing data between this authentication session and the user's normal browser session in Safari. More importantly, to us, it skips the '"App" Wants to use "domain" to Sign In' prompt which many of our users have complained about.
Can you provide an optional on authenticateUser to set this as true or false?