Blitz - WPT: scroll-markers-computed.html

wpt / css / css-overflow / parsing / scroll-markers-computed.html

Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)

Subtest	Status	Message
Property scroll-marker-group value 'initial'	FAIL	assert_true: scroll-marker-group doesn't seem to be supported in the computed style expected true got false
Property scroll-marker-group value 'inherit'	FAIL	assert_true: scroll-marker-group doesn't seem to be supported in the computed style expected true got false
Property scroll-marker-group value 'unset'	FAIL	assert_true: scroll-marker-group doesn't seem to be supported in the computed style expected true got false
Property scroll-marker-group value 'revert'	FAIL	assert_true: scroll-marker-group doesn't seem to be supported in the computed style expected true got false
Property scroll-marker-group value 'none'	FAIL	assert_true: scroll-marker-group doesn't seem to be supported in the computed style expected true got false
Property scroll-marker-group value 'before'	FAIL	assert_true: scroll-marker-group doesn't seem to be supported in the computed style expected true got false
Property scroll-marker-group value 'after'	FAIL	assert_true: scroll-marker-group doesn't seem to be supported in the computed style expected true got false
The scroll-marker-group property shows up in CSSStyleDeclaration enumeration	FAIL	assert_not_equals: got disallowed value -1
The scroll-marker-group property shows up in CSSStyleDeclaration.cssText	FAIL	assert_not_equals: got disallowed value -1

Enable JavaScript in test iframe

/css/css-overflow/parsing/scroll-markers-computed.html

<!doctype html>
<meta charset="utf-8">
<title>CSS Overflow: scroll-marker-group computed values</title>
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group-property">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/computed-testcommon.js"></script>
<style>
  #target {
    scroll-marker-group: before;
  }
</style>
<div id="target"></div>
<script>
  test_computed_value('scroll-marker-group', 'initial', 'none');
  test_computed_value('scroll-marker-group', 'inherit', 'none');
  test_computed_value('scroll-marker-group', 'unset', 'none');
  test_computed_value('scroll-marker-group', 'revert', 'none');

  test_computed_value('scroll-marker-group', 'none');
  test_computed_value('scroll-marker-group', 'before');
  test_computed_value('scroll-marker-group', 'after');

  test(() => {
    let style = getComputedStyle(document.getElementById('target'));
    assert_not_equals(Array.from(style).indexOf('scroll-marker-group'), -1);
  }, 'The scroll-marker-group property shows up in CSSStyleDeclaration enumeration');

  test(() => {
    let style = document.getElementById('target').style;
    assert_not_equals(style.cssText.indexOf('scroll-marker-group'), -1);
  }, 'The scroll-marker-group property shows up in CSSStyleDeclaration.cssText');

</script>