Reference Guide
...
HTTP Proxy
Auto-Login for Kron PAM HTTP P...
Auto-Login via Basic Authentication
1min
Some web servers may require authentication via pop-up. To maintain successful authentication, you need to enable auto-login via the basic authentication feature.

To enable this feature, you must set the http.auto.login.post.header element type property with the Authorization value. Unlike the legacy auto-login mechanism for POST requests, both GET and POST requests will be checked for auto-login via basic authentication.
You shouldn’t set the http.auto.login.username.matcher.template and http.auto.login.password.matcher.template properties to auto-login via basic authentication since these properties will disable auto-login via basic authentication.