首先，要配置https域名

nginx配置https

1、阿里云提供免费型的https证书。如下图：

2、购买成功。按照要求填写好相关信息，下载证书文件，NGINX服务器配置参照阿里云的配置

server {
    listen              443 ssl;
    server_name         www.baidu.com;
    ssl_certificate     /path/to/baidu.crt;  # 证书文件
    ssl_certificate_key /path/to/baidu.key; # 私钥文件
    ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers         HIGH:!aNULL:!MD5;
    location / {
        root /home/www/html;
    }
}

3、重启nginx 浏览器打开https://www.baidu.com
4、现在配置node.js服务器，如下：

var config = require('../config')
if (!process.env.NODE_ENV) process.env.NODE_ENV = JSON.parse(config.dev.env.NODE_ENV)
var path = require('path')
var express = require('express')
var webpack = require('webpack')
var opn = require('opn')
var proxyMiddleware = require('http-proxy-middleware')
var webpackConfig = require('./webpack.dev.conf')
var https = require('https');
var fs = require('fs');

// default port where dev server listens for incoming traffic
var port = process.env.PORT || config.dev.port
    // Define HTTP proxies to your custom API backend
    // https://github.com/chimurai/http-proxy-middleware

var server = express()
var compiler = webpack(webpackConfig)

var devMiddleware = require('webpack-dev-middleware')(compiler, {
    publicPath: webpackConfig.output.publicPath,
    stats: {
        colors: true,
        chunks: false
    }
})

var hotMiddleware = require('webpack-hot-middleware')(compiler)
    // force page reload when html-webpack-plugin template changes
compiler.plugin('compilation', function(compilation) {
    compilation.plugin('html-webpack-plugin-after-emit', function(data, cb) {
        hotMiddleware.publish({
            action: 'reload'
        })
        cb()
    })
})

var context = config.dev.context

switch(process.env.NODE_ENV){
    case 'local': var proxypath = 'http://localhost:8001'; break;
    case 'online': var proxypath = 'https://www.baidu.com'; break;
    default:  var proxypath = config.dev.proxypath;
}

var options = {
    target: proxypath,
    changeOrigin: true
}
if (context.length) {
    server.use(proxyMiddleware(context, options))
}

// handle fallback for HTML5 history API
server.use(require('connect-history-api-fallback')())

// serve webpack bundle output
server.use(devMiddleware)

// enable hot-reload and state-preserving
// compilation error display
server.use(hotMiddleware)

// serve pure static static
var staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory)
server.use(staticPath, express.static('./static'));

var certial = {
  key:fs.readFileSync('/path/to/private.key', 'utf8'),
  cert:fs.readFileSync('/path/to/fullchain.pem', 'utf8')
};

var httpsServer = https.createServer(certial, server);

module.exports = httpsServer.listen(port, function(err) {
    if (err) {
        console.log(err)
        return
    }
    var uri = 'http://localhost:' + port
    console.log('Listening at ' + uri + '\n')
    // when env is testing, don't need open it
    if (process.env.NODE_ENV !== 'testing') {
        opn(uri)
    }
})

5、执行 npm run dev
6、浏览器打开 https://www.baidu.com:8000