到我的服务器的HTTPS连接不起作用，我不知道为什么。每次我导航到我的服务器的默认路由（“/”）时，我都会得到一个“502 Bad Gateway”错误。
以下是有关我的设置的一些详细信息：

• 我在Amazon EC2 Ubuntu示例上托管Express服务器。
• 分配给此示例的安全组接受来自任何地方的http、https和ssh请求。
• 我使用nginx（v1.18.0）作为反向代理。
• 我从Zerossl获得了SSL证书。

Express应用程序：

const app = express();

app.use(express.json());

app.use(
  cors({
    origin: ["*"],
    methods: ["GET", "PUT", "POST", "DELETE"],
    allowedHeaders: ["Origin", "Content-Type", "Authorization"],
  })
);

const httpPort = 3001;
const httpsPort = 3002;

// Read the SSL/TLS certificate and private key
const privateKey = fs.readFileSync(path.join(__dirname, process.env.SSL_FOLDER_PATH!, "private.key"), "utf8");
const certificate = fs.readFileSync(path.join(__dirname, process.env.SSL_FOLDER_PATH!, "certificate.crt"), "utf8");
const credentials = { key: privateKey, cert: certificate };

// Create an HTTPS server using the credentials
const httpsServer = https.createServer(credentials, app);

app.listen(httpPort, () => {
  console.log(`HTTP gia-trainer-server listening on port ${httpPort}`);
});

httpsServer.listen(httpsPort, () => {
  console.log(`HTTPS gia-trainer-server listening on port ${httpsPort}`);
});

app.get("/", (req, res) => {
  res.send("Hello World!!");
});

我的nginx conf文件（位于/etc/nginx/conf.d）：

server {
        listen 80;
        server_name 3.145.91.237;

        location / {
                proxy_pass http://localhost:3001;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

        #location / {
        #       return 301 https://$host$request_uri;
        #}
}

server {
        listen 443 ssl;
        server_name 3.145.91.237;

        ssl_certificate /home/ubuntu/ssl/gia-trainer/certificate.crt;
        ssl_certificate_key /home/ubuntu/ssl/gia-trainer/private.key;

location / {
                proxy_pass http://localhost:3002;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

                # Additional proxy settings if needed
                #proxy_read_timeout 300s;
                #proxy_connect_timeout 75s;
        }
}

我检查了nginx错误日志，这是我发出请求时得到的结果：

2023/06/23 20:50:49 [error] 56080#56080: *1 upstream prematurely closed connection while reading response header from upstream, client: 176.27.127.113, server: 3.145.91.237, request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:3002/", host: "ec2-3-145-91-237.us-east-2.compute.amazonaws.com"

有什么想法可能导致这个错误吗？我花了整整两天的时间来解决这个问题，不停地修改配置文件。它在普通的HTTP上工作得很好：（
谢谢大家