Auto logoff web interface

HI, is there auto logoff on the web interface? Or even manual logoff.
I can close the browser , re-open the web interface, and I’m logged in, no userid/password prompt.

I think .htaccess doesnt have a 100% method for log out so you simply clear your cookies or use an incognito browser to go into the dashboard so that when you close the browser it doesnt save your login…