vertical-scroll-scrollbar-ref.html

Enable keyboard shortcuts

<!doctype html>

<title>Ref: vertical-scroll test for scrollbar</title>

<iframe src="/permissions-policy/experimental-features/resources/vertical-scroll-scrollable-content.html"></iframe>

<script>

  let iframe = document.querySelector("iframe");

  let overflow_y = "visible";

  if (window.location.search.indexOf("no-vertical-scrollbar") !== -1)

    overflow_y = "hidden"

  iframe.addEventListener("load", () => {

    iframe.contentDocument.body.style.overflowY = overflow_y;

});

</script>