| <!doctype html> |
| <title>Insert color-scheme meta tags</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> |
| <script> |
| function createMeta(content) { |
| const meta = document.createElement("meta"); |
| meta.setAttribute("name", "color-scheme"); |
| meta.setAttribute("content", content); |
| return meta; |
| } |
| |
| assert_root_color_scheme("normal", "Initial color-scheme"); |
| |
| document.head.appendChild(createMeta("light")); |
| assert_root_color_scheme("light", "Inserted meta color-scheme applies"); |
| |
| document.head.insertBefore(createMeta("dark"), document.head.lastChild); |
| assert_root_color_scheme("dark", "Inserted meta color-scheme before existing in head applies"); |
| </script> |
