testing/web-platform/tests/html/semantics/forms/the-input-element/placeholder-update.html


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<!DOCTYPE html>
<html>
<link rel="match" href="placeholder-update-ref.html">
<body>
<div id="app"></div>
<script>
const rootElement = document.getElementById("app");
const input = document.createElement("input");
input.placeholder = "placeholder";
input.value = "content";
rootElement.appendChild(input);
</script>
</body>
</html>