{"superUser": false, "visitorUUID": "fc209305-1afe-4c20-8fd0-49b17f33d7c2"}
<script>
  const config = {"superUser": false, "visitorUUID": "fc209305-1afe-4c20-8fd0-49b17f33d7c2"};
  console.log('hello from iframe:', config);
  window.parent.postMessage({visitorUUID: config.visitorUUID, superUser: config.superUser}, targetOrigin='*');
</script>