<!DOCTYPE html>
<iframe id="target" style="border-radius: 20px"
srcdoc="<div style='width: 300px; height:400px; background: blue'>"></iframe>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<script src="../../../resources/run-after-layout-and-paint.js"></script>
<script>
if (window.internals)
internals.settings.setPreferCompositingToLCDTextEnabled(true);
onload = () => {
async_test(t => {
runAfterLayoutAndPaint(t.step_func_done(() => {
target.style.height = "600px";
}));
});
};
</script>