RouterReuseStrategy之后该组件不再起作用

Question

在使用此问题中的某些功能后：https://github.com/angular/angular/issues/13831

constructor(private router: Router){
 // override the route reuse strategy
 this.router.routeReuseStrategy.shouldReuseRoute = function(){
    return false;
 }

 this.router.events.subscribe((evt) => {
    if (evt instanceof NavigationEnd) {
       // trick the Router into believing it's last link wasn't previously loaded
       this.router.navigated = false;
       // if you need to scroll back to top, here is the right place
       window.scrollTo(0, 0);
    }
});

}

“我的组件”不再显示来自后端的任何数据。我什至切换了git分支，似乎它到处都破坏了该组件。有什么问题吗？