| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/css-cascade-5/#unnamed-layers"> |
| <link rel="help" href="https://drafts.csswg.org/cssom/#dom-documentorshadowroot-adoptedstylesheets"> |
| <link rel="help" href="https://issues.chromium.org/issues/462744687"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id=target>Test</div> |
| <script> |
| test(() => { |
| let a = new CSSStyleSheet(); |
| a.replaceSync(`@layer { div { color: green; } }`); |
| let b = new CSSStyleSheet(); |
| b.replaceSync(`@layer { div { color: red; } }`); |
| document.adoptedStyleSheets = [a, b, a]; |
| assert_equals(getComputedStyle(target).color, 'rgb(0, 128, 0)'); |
| }); |
| </script> |
