| <!doctype html> |
| <title>Meta color-scheme - attribute changes</title> |
| <meta id="meta" name="color-scheme" content="dark"> |
| <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> |
| assert_root_color_scheme("dark", "Meta color-scheme initially 'dark'."); |
| |
| meta.removeAttribute("name"); |
| assert_root_color_scheme("normal", "Removed name attribute from meta color-scheme."); |
| |
| meta.setAttribute("name", "color-scheme"); |
| assert_root_color_scheme("dark", "Set meta name to color-scheme."); |
| |
| meta.setAttribute("content", ""); |
| assert_root_color_scheme("normal", "Set content attribute of meta color-scheme to empty string."); |
| |
| meta.setAttribute("content", ",,invalid"); |
| assert_root_color_scheme("normal", "Set content attribute of meta color-scheme to an invalid value."); |
| |
| meta.setAttribute("content", "light"); |
| assert_root_color_scheme("light", "Set content attribute of meta color-scheme to 'light'."); |
| |
| meta.removeAttribute("content"); |
| assert_root_color_scheme("normal", "Removed the content attribute of meta color-scheme."); |
| </script> |
