<!doctype html> <title>getComputedStyle() returns the right style for animating nodes that have been just inserted into the document, and that have an ancestor whose layout tree was recreated (like an IB-split)</title> <link rel="help" href="https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle"> <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1585882"> <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> <link rel="author" title="Mozilla" href="https://mozilla.org"> <script src=/resources/testharness.js></script> <script src=/resources/testharnessreport.js></script> <style> @keyframes my-animation { from { color: green; } to { color: green; } } div { color: red; animation: my-animation 1s infinite linear paused; } </style> <span> <div></div> </span> <script> test(() => { let oldDiv = document.querySelector("div"); window.unused = oldDiv.getBoundingClientRect(); // update layout assert_equals(getComputedStyle(oldDiv).color, "rgb(0, 128, 0)", "Should take color from the animation"); let newDiv = document.createElement("div"); oldDiv.replaceWith(newDiv); assert_equals(getComputedStyle(newDiv).color, "rgb(0, 128, 0)", "Should take color from the animation (just inserted into the document)"); }, "getComputedStyle() should return animation styles for nodes just inserted into the document, even if they're in an IB-split"); </script>