Easy way to add exit verification dialog to your Vaadin Application

Offers simple one line API to define verification dialog shown to user when user is trying to exit or reload page. Can be used to warn if user has any unsaved changes. When changes are save, you can disable dialog with simple one liner.


Link to this version
ExperimentalReleased 26 February 2014Apache License 2.0
Framework Support
Vaadin 7.1+
Also supported:
Vaadin 8 (0.3.1)
Browser Compatibility
Install with
Release notes - Version 0.2.0

Adds client side API for disabling exit verification. Can be eg. used when force reloading page after connection error. https://github.com/alump/BeforeUnload/wiki/How-to-disable-verification-dialog-when-connection-error

FYI, modern browsers do not anymore support custom messages, but dialog itself is still shown, with default confirmation message.