server/assets/development/scripts/countdown.js

const countdown = document.getElementById('countdown')
const counter = document.getElementById('counter')

const daysContainer = document.getElementById('days')
const hoursContainer = document.getElementById('hours')
const minutesContainer = document.getElementById('minutes')
const secondsContainer = document.getElementById('seconds')

let shown = false

//const enableReload = window.location.pathname.indexOf('c') === -1

enableReload = true

function render() {
  let current = new Date()
  let difference = openDate - current

  var _second = 1000,
    _minute = _second * 60,
    _hour = _minute * 60,
    _day = _hour * 24

  var days = Math.floor(difference / _day),
    hours = Math.floor((difference % _day) / _hour),
    minutes = Math.floor((difference % _hour) / _minute),
    seconds = Math.floor((difference % _minute) / _second)

    days = (String(days).length >= 2) ? days : '0' + days
    hours = (String(hours).length >= 2) ? hours : '0' + hours
    minutes = (String(minutes).length >= 2) ? minutes : '0' + minutes
    seconds = (String(seconds).length >= 2) ? seconds : '0' + seconds

  if (openDate <= current && enableReload) {
    console.log('FINISHED!')
    window.location = '/'
  } else {
    daysContainer.textContent = days
    hoursContainer.textContent = hours
    minutesContainer.textContent = minutes
    secondsContainer.textContent = seconds
  }
  if (!shown) {
    setTimeout(() => {
      countdown.style.opacity = 1
      shown = true
    }, 300)
  }
}


render()
setInterval(render, 1000)