function asyncMessage(msg) {
  let deferred

  const onMessage = function (msg) {
    if (deferred) {
      deferred.resolve(msg)
      deferred = null
    }
  }

  const nextMessage = function () {
    if (!deferred) {
      deferred = {}
      deferred.promise = new Promise(resolve => deferred.resolve = resolve)
    }
    return deferred.promise
  }

  setTimeout(() => onMessage(msg), 3000)

  return nextFrame
}