Angular Universal页面加载/刷新问题

Question

我在我的项目中添加了 Angular Universal（升级到 Angular 8）。这是一个相对较大的工程。解决所有窗口、jquery 和 localstorage 问题后，我已经成功运行该应用程序。但问题是，服务器运行在 localhost:4000 上。当我在浏览器中输入 localhost:4000 时，没有任何反应。但是如果我输入 localhost:4000/index.html，它就会开始正常加载并返回到基本 localhost:4000。然后每条有角度的路线都可以正常工作。但如果我尝试刷新任何页面，它不会加载任何内容。

我的服务器.ts

import 'zone.js/dist/zone-node';
// ssr DOM
const domino = require('domino');
const fs = require('fs');
const path = require('path');
const template = fs.readFileSync(path.join('dist/browser', 'index.html')).toString();
const win = domino.createWindow(template);
global['window'] = win;
Object.defineProperty(win.document.body.style, 'transform', {
  value: () => {
    return {
      enumerable: true,
      configurable: true,
    };
  },
});
// mock documnet
global['document'] = win.document;
// othres mock
global['CSS'] = null;
// global['XMLHttpRequest'] = require('xmlhttprequest').XMLHttpRequest;
global['Prism'] = null;


import { ngExpressEngine } from '@nguniversal/express-engine';
import * as express from 'express';
import { join } from 'path';

import { AppServerModule } from './src/main.server';
import { APP_BASE_HREF } from '@angular/common';
import { existsSync } from 'fs';

// The Express app is exported so that it can be used by serverless Functions.
export function app() {
  const server = express();
  const distFolder = join(process.cwd(), 'dist/browser');
  const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';

  // Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
  server.engine('html', ngExpressEngine({
    bootstrap: AppServerModule,
  }));

  server.set('view engine', 'html');
  server.set('views', distFolder);

  // Example Express Rest API endpoints
  // app.get('/api/**', (req, res) => { });
  // Serve static files from /browser
  server.get('*.*', express.static(distFolder, {
    maxAge: '1y'
  }));

  // All regular routes use the Universal engine
  server.get('*', (req, res) => {
    res.render(indexHtml, { req, providers: [{ provide: APP_BASE_HREF, useValue: req.baseUrl }] });
  });

  return server;
}

function run() {
  const port = process.env.PORT || 4000;

  // Start up the Node server
  const server = app();
  server.listen(port, () => {
    console.log(`Node Express server listening on http://localhost:${port}`);
  });
}

// Webpack will replace 'require' with '__webpack_require__'
// '__non_webpack_require__' is a proxy to Node 'require'
// The below code is to ensure that the server is run only when not requiring the bundle.
declare const __non_webpack_require__: NodeRequire;
const mainModule = __non_webpack_require__.main;
if (mainModule && mainModule.filename === __filename) {
  run();
}

export * from './src/main.server';

我想我需要对此文件进行一些更改才能正确加载。