How do I detect user navigating back in Angular2?

I have a component and I need to detect if user pressed back button in his browser to navigate back.

Currently I'm subscribing router events.

constructor(private router: Router, private activatedRoute: ActivatedRoute) {

this.routerSubscription = router.events
.subscribe(event => {

// if (event.navigatesBack()) ...

});

}


I know that I can use window.onpopstate but it feels like a hack when using Angular2.

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