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<html>
<head>
<meta charset="utf-8">
</head>
<body>
<div id="target">Hello 👋 <span id="inside"></span> World!</div>
<script>
if (window.testRunner)
    testRunner.waitUntilDone();

window.requestAnimationFrame(function() {
    let target = document.getElementById("target");
    let inside = document.getElementById("inside");
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    inside.textContext = "middle";
    window.requestAnimationFrame(function() {
        inside.textContext = "";
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                testRunner.notifyDone();
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</script>
</body>
</html>