在Google Chrome的控制台日志中，我收到这些错误：

GET https://192.168.1.7:8081/sockjs-node/info?t=1579798623564 net::ERR_SSL_PROTOCOL_ERROR
GET https://192.168.1.7/sockjs-node/info?t=1579798623562 net::ERR_CERT_COMMON_NAME_INVALID

如果在/etc/nginx/conf/default.conf（Ubuntu 18.04.03 Server Edition）中：

server {
    listen 443 ssl http2 default_server;
    server_name example.com www.example.com
    ssl_certificate /etc/ssl/certs/chained.pem;
    ssl_certificate_key /etc/ssl/private/domain.key;
    ssl_certificate /etc/ssl/certs/chained.pem;
    ssl_certificate_key /etc/ssl/private/domain.key;
    ssl_session_timeout 5m;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:50m;
    ssl_dhparam /etc/ssl/certs/dhparam.pem;
    ssl_stapling on;
    ssl_stapling_verify on;

    add_header Strict-Transport-Security "max-age=31536000";
    location / {
        proxy_pass http://192.168.1.7:8081;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name example.com www.example.com;
    return 301 https://$host$request_uri;
    add_header Strict-Transport-Security "max-age=31536000";
    location / {
        proxy_pass http://192.168.1.7:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

我设置vue.config.js如下：

module.exports = {
  productionSourceMap: false,
  pluginOptions: {
    i18n: {
      enableInSFC: true
    }
  },
  devServer: {
    host: '192.168.1.7',
    hot: true,
    disableHostCheck: true
  }
}

并定义webpack.config.js如下：

var path = require('path');
var fs = require('fs');

module.exports = {
    https: {
        key: fs.readFileSync('/etc/ssl/private/domain.key'),
        ca: fs.readFileSync('/etc/ssl/certs/chained.pem')
    }
};

更新1）
在/etc/nginx/conf.d/default.conf中修改http -〉https：

location / {
    proxy_pass https://192.168.1.7:8081;

502 Bad Gateway：

所以。。。我现在的问题是：如何让nginx服务器使用TLS应答？
我做错了什么？如何解决问题？