無限に時間がかかるサーバー

const express = require('express')
const app = express()
const port = 9999

app.get('/', (req, res) => {
  res.header('Access-Control-Allow-Origin', '*')
  res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE')
  res.header(
    'Access-Control-Allow-Headers',
    'Content-Type, Authorization, access_token'
  )
  setTimeout(() => {
    res.send('Hello World!')
  }, 1000000000)
})

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})