ng-alain解决新版本发布后前端存在缓存而导致路由出错问题

app.component.ts

import { Component, ElementRef, OnInit, Renderer2 } from '@angular/core';
import { NavigationEnd, NavigationError, RouteConfigLoadStart, Router } from '@angular/router';
import { TitleService, VERSION as VERSION_ALAIN } from '@delon/theme';
import { environment } from '@env/environment';
import { NzModalService } from 'ng-zorro-antd/modal';
import { VERSION as VERSION_ZORRO } from 'ng-zorro-antd/version';


@Component({
  selector: 'app-root',
  template: ` <router-outlet></router-outlet> `
})
export class AppComponent implements OnInit {
  constructor(
    el: ElementRef,
    renderer: Renderer2,
    private router: Router,
    private titleSrv: TitleService,
    private modalSrv: NzModalService
  ) {
    renderer.setAttribute(el.nativeElement, 'ng-alain-version', VERSION_ALAIN.full);
    renderer.setAttribute(el.nativeElement, 'ng-zorro-version', VERSION_ZORRO.full);
  }


  ngOnInit(): void {
    let configLoad = false;
    this.router.events.subscribe(ev => {
      if (ev instanceof RouteConfigLoadStart) {
        configLoad = true;
      }
      if (configLoad && ev instanceof NavigationError) {
        this.modalSrv.confirm({
          nzTitle: `提醒`,
          nzContent: environment.production ? `应用可能已发布新版本，请点击刷新才能生效。` : `无法加载路由：${ev.url}`,
          nzCancelDisabled: false,
          nzOkText: '刷新',
          nzCancelText: '忽略',
          nzOnOk: () => location.reload()
        });
      }
      if (ev instanceof NavigationEnd) {
        this.titleSrv.setTitle();
        this.modalSrv.closeAll();
      }
    });
  }
}