The addHandler() method of the NavigationPrecommitController interface allows you to dynamically add a handler callback function in precommit code, which will then be run after the navigation has committed.
The redirect() method of the NavigationPrecommitController interface redirects the browser to a specified URL and specifies history behavior and any desired state information.
Optionaloptions: NavigationNavigateOptions
The
NavigationPrecommitControllerinterface of the Navigation API is passed as an argument to a navigation precommit handler callback.MDN Reference