meta-color-scheme-single-value-in-shadow-tree.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/document-metadata/the-meta-element/color-scheme/meta-color-scheme-single-value-in-shadow-tree.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>Meta color-scheme in shadow-tree should not apply</title>

<link rel="help" href="https://html.spec.whatwg.org/multipage/semantics.html#meta-color-scheme">

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

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

<script src="support/compute-root-color-scheme.js"></script>

<!--

  NOTE: This test assumes that the browser's default color-scheme is "light",

  see https://github.com/web-platform-tests/wpt/pull/31268 for reasoning

-->

<script>

  const host = document.createElement("div");

  host.id = "host";

  document.head.appendChild(host);

  const root = host.attachShadow({mode:"open"});

  const meta = document.createElement("meta");

  meta.setAttribute("name", "color-scheme");

  meta.setAttribute("content", "dark");

  root.appendChild(meta);

  assert_root_color_scheme("light", "Meta color-scheme in shadow tree does not apply.");

</script>