How to show alert message on ZEN when user closing window?
Standart js way to add listener is not working.
I tried this
Zen is a school of Mahayana Buddhism that originated in China during the Tang dynasty as Zen Buddhism. Zen school was strongly influenced by Taoism and developed as a distinct school of Chinese Buddhism.
In InterSystems Data Platform Zen is a name for MVC web application framework for rapid software development.