Restrict Google account usage to specific domains Issue

hi Im trying to implement Restrict Google account usage to specific domains Issue withh Deep Inspection, teh web filter fitler works just fine but when i try to restrict the acceso to a google a account, I can´t have access to the GMAIL url o accounts.gmail.com and depending og the browser it show me the error HTTP Strict Transport Security (HSTS), I dont know if when i activate this option the access is different.

Regards