I have installed Fresh Magento 2.3.4, and set multiple store with websites on sub-domains. I want customers to signin in one store and then automatically signedin on another store on sub-domain. I have set cookie domain to like example.com (where sub-domain is sub.example.com). It isn't working. Plus also did set cookie-domain to ".example.com", it then makes customer and admin signin pages reload to again signin page. Anyone has idea about it?