<script>
  up.compiler('.timestamp', (element) => {
    var now = new Date()
    element.innerText = now
  })
</script>

<div class="timestamp">
  Uncompiled

<script>
  up.compiler('.timestamp', (element) => {
    var now = new Date()
    element.innerText = now
  })
</script>

<div class="timestamp">
  Uncompiled
</div>

Update invalid HTML in spec_app
Update invalid HTML in spec_app
