| <!doctype html> |
| <meta charset="utf-8"> |
| <title>CSSOM: CSSStyleDeclaration.setPropertyValue queues a mutation record when changed</title> |
| <link rel="help" href="https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-setpropertyvalue"> |
| <link rel="help" href="https://drafts.csswg.org/cssom/#update-style-attribute-for"> |
| <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| document.documentElement.style.top = "0px"; |
| |
| let test = async_test("CSSStyleDeclaration.setPropertyValue queues a mutation record when serialization is changed"); |
| let m = new MutationObserver(function(r) { |
| assert_equals(r.length, 1); |
| test.done(); |
| }); |
| |
| m.observe(document.documentElement, { attributes: true }); |
| document.documentElement.style.top = "1px"; |
| </script> |
