CSSStyleSheet-constructable-cssRules.html (1174B)
1 <!doctype html> 2 <meta charset="utf-8"> 3 <title>CSSStyleSheet.replace/replaceSync() doesn't change cssRules object</title> 4 <link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez"> 5 <link rel="author" href="https://mozilla.org" title="Mozilla"> 6 <link rel="help" href="https://drafts.csswg.org/cssom/#extensions-to-the-document-or-shadow-root-interface"> 7 <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1752392"> 8 <script src="/resources/testharness.js"></script> 9 <script src="/resources/testharnessreport.js"></script> 10 <span>Should be green</span> 11 <script> 12 promise_test(async function() { 13 const sheet = new CSSStyleSheet(); 14 let rules = sheet.cssRules; 15 sheet.replaceSync('span {color:blue;}'); 16 assert_equals(rules, sheet.cssRules, "Rules should be the same after replaceSync"); 17 await sheet.replace('span {color: lime;}'); 18 assert_equals(rules, sheet.cssRules, "Rules should be the same after replace()"); 19 document.adoptedStyleSheets = [sheet]; 20 assert_equals(getComputedStyle(document.querySelector("span")).color, "rgb(0, 255, 0)", "Sheet should apply"); 21 }, "cssRules doesn't change on replace / replaceSync"); 22 </script>