A customer has ZScaler and F5's.
This causes a problem each time CefSharp is run as ZScaler kicks in, eg: https://gateway.zscalerthree.net/ and redirects to a page https://XYZ.com.au/ntlm/auth that results in a AuthenticationFailure:
Users have to set the web address to F5's BIP-IP login page, eg: https://XYZ.com.au/my.policy
This doesn't happen in Google Chrome, how can I cache the credentials or avoid users having to login each time?