find misbehaving or unwanted timeouts and intervals

gistfile1.txt

window._setTimeout = window.setTimeout
window._clearTimeout = window.clearTimeout
window._setInterval = window.setInterval
window._clearInterval = window.clearInterval
window.activeTimers = {}

window.setTimeout = (func, delay) => {
  const id = window._setTimeout(() => {
    func()
    window.clearTimeout(id)
  }, delay)
  window.activeTimers[id] = new Error().stack
  return id
}

window.setInterval = (func, delay) => {
  const id = window._setInterval(() => {
    func()
    window.clearInterval(id)
  }, delay)
  window.activeTimers[id] = new Error().stack
  return id
}

window.clearTimeout = (timerId) => {
  delete window.activeTimers[timerId]
  window._clearTimeout(timerId)
}

window.clearInterval = (timerId) => {
  delete window.activeTimers[timerId]
  window._clearInterval(timerId)
}