Https //localhost 11501 -

app.get('/', (req, res) => { res.send('Hello from localhost:11501'); });

const options = { key: fs.readFileSync('server.key'), cert: fs.readFileSync('server.cert') }; https //localhost 11501

const https = require('https'); const fs = require('fs'); const express = require('express'); const app = express(); { res.send('Hello from localhost:11501')

It looks like you're referencing a localhost address with port 11501 — but the URL is missing the colon after https (should be https://localhost:11501 ). const options = { key: fs.readFileSync('server.key')