[HUMMINGBIRD] When cache option is on protected page just keeps loading

When cache is OFF in Hummingbird my page which is protect by password works ok - I enter pass and I see the content.
When cache is ON in Hummingbird same page which is protect by password does not works ok - I enter pass and page just reload.
I try to HB -> Cache -> Exclusions for that page but same issue exist.
Any help on this?
Thank you