<!DOCTYPE html>
<html>
<head>
<style>
.trigger-bug {
    position: absolute;
    will-change: transform;
    z-index: -1; /* Causes foreground layer creation */
}
</style>
</head>
<body>
<div>
    <input type="text">
    <div class="trigger-bug"></div>
</div>
<pre id="results"></pre>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
if (window.internals)
    internals.settings.setEditableRegionEnabled(true);
if (window.internals)
    results.textContent = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_EVENT_REGION | internals.LAYER_TREE_INCLUDES_ROOT_LAYER_PROPERTIES);
</script>
</body>
</html>