We'll create fresh WordPress site with Instant Cookie Expire installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Limiting the cookie expire time of password protected posts. By default the cookie set when entering a password to access a password-protected post will be active for 10 days. This plugin turns this cookie into a session-based cookie. This means your visitor will need to re-enter the password if the browser was closed prior to revisiting the post.