hidden-until-found-idl.html

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This WPT test may be referenced by the following Test IDs:
- /html/editing/the-hidden-attribute/hidden-until-found-idl.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<link rel=author href="mailto:jarhar@chromium.org">

<link rel=help href="https://html.spec.whatwg.org/#the-hidden-attribute">

<link rel=helph href="https://issues.chromium.org/issues/402108887">

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

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

<div id=target>div</div>

<script>

test(() => {

  const target = document.getElementById('target');

  target.setAttribute('hidden', 'UNTIL-FOUND');

  assert_equals(target.hidden, 'until-found');

  target.setAttribute('hidden', 'uNtIl-FoUnD');

  assert_equals(target.hidden, 'until-found');

  target.setAttribute('hidden', 'until-found');

  assert_equals(target.hidden, 'until-found');

}, 'element.hidden should return "until-found" regardless of uppercase letters.');

</script>