<html>
<body>
<script>
function doXhrSubmit() {
// Remove the form in the child frame to trigger a XHR form submission there.
const iframeDoc = document.getElementById('address-form-iframe').contentDocument;
iframeDoc.forms[0].remove();
}
</script>
<iframe src="autofill_smoke_test.html" id="address-form-iframe"></iframe><br>
<button type="button" onclick="doXhrSubmit()" id="do-xhr-submit">XHR Submit</button>
</body>
</html>