ladybird/Tests/LibWeb/Layout/input/input-text-node-invalidation-on-value-change.html

<input id="foo">
<script>
    let foo = document.getElementById("foo");
    foo.value = "FAIL";
    document.body.offsetWidth; // Force a layout
    document.addEventListener("DOMContentLoaded", function() {
        foo.value = "PASS";
    });
</script>