Auto/Persistent Authentication issue in Chrome

It seems to me once I have hosted a meeting once (with proper authentication). All subsequent hostings did not ask for authentication even though I have turned off password saving in Chrome.

The only way the server would ask for authentication everytime is to use Incognito mode in Chrome.

Is there anyway to force Chrome in normal mode to ask for authentication everytime?

@damencho Ok. I understood that there is session ID and an expiry time for that.
Can we able to reduce the expiry time?.It seems too much for me.