[Bug]: Connection refused to express server.

[Themion]

What happened?

I tried to use RapidAPI to my localhost express server, but it didn't work. I think it's because of express, and this is why.

• I tried on google and github, just to make sure that my rapidAPI didn't broke. They gave me web page without css/js.
• I tried on my react/spring app running on localhost.
  • React app gave me noscript(which I expected).
  • Spring app gave me json I expected.
• I tried on my express app hosted on heroku.
  • get request to index page gave me web page without css/js.
  • post request gave me json I expected.
• I tried on demo express app, and it gave me 'Connection refused'.

Steps to reproduce?

Code below is the code I used for testing.

• node.js version is 16.17.0(LTS).
• express version is 4.18.1.

// server.js
const express = require('express');

const app = express();
const PORT = 8080;

app.use(express.json());
app.use(express.urlencoded({ extended: false }));

app.get('/', (req, res) => {
    res.json({hello: 'world'})
});

app.listen(PORT, () => {
    console.log(`Express server is now running in port ${PORT}`);
});

// node server.js

VS Code version

version 1.71

Extension version

v1.5.0

Relevant log output

No response

[nowuX]

I had the same problem, instead of request to http://localhost:8080 try http://[::1]:8080, or change the host in app.listen(), by default if host is omitted NodeJS will use Ipv6, docs.