this.router.events.filter(event => event instanceof NavigationEnd).subscribe((event) => {
      this.breadcrumbs = [];
      let currentRoute = this.route.root,
      url = '';
      do {
        const childrenRoutes = currentRoute.children;
        currentRoute = null;
        childrenRoutes.forEach(route => {
          if (route.outlet === 'primary') {
            const routeSnapshot = route.snapshot;
            url += '/' + routeSnapshot.url.map(segment => segment.path).join('/');
            this.breadcrumbs.push({
              label: route.snapshot.data,
              url:   url
            });
            currentRoute = route;
          }
        });
      } while (currentRoute);
    });

currentRoute = null;