[602] doesn't work window.onscroll

Hi guys

I have a problem and don't found the solution. I want to detect the scroll of the user, but when I try doesn't work. This is my code.

mounted () {
  window.onscroll = e => {
    console.log(e)
  }
}

Too I put this code.

mounted () {
  window.addEventListener('scroll', e => {
    console.log(e)
  }, false)
}

neither with window neither document

Thanks