constructor-no-document.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /scroll-animations/scroll-timelines/constructor-no-document.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>ScrollTimeline constructor - no document</title>

<link rel="help" href="https://wicg.github.io/scroll-animations/#scrolltimeline-interface">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

'use strict';

test(function() {

  document.documentElement.remove();

  assert_equals(document.scrollingElement, null);

  const timeline = new ScrollTimeline();

  assert_equals(timeline.source, null);

  assert_equals(timeline.currentTime, null);

}, 'The source can be null if the document.scrollingElement does not exist');

</script>