{"superUser": false, "visitorUUID": "d4544e08-8b90-4a20-a1f4-f21797915ea1"}
<script>
  const config = {"superUser": false, "visitorUUID": "d4544e08-8b90-4a20-a1f4-f21797915ea1"};
  console.log('hello from iframe:', config);
  window.parent.postMessage({visitorUUID: config.visitorUUID, superUser: config.superUser}, targetOrigin='*');
</script>