Example JavaScript in the Parent page that has the iFrame:

<script>
   let messageList = [];
   window.addEventListener("message", (event) => {
     alert(event.data);  
if (event.origin !== "https://<your full domain name>")
  // This domain isn't what we're looking for, simply return from the function 
  return;
}, false);
</script>

Events Captured:

• User Active - the user is active and logged in

• Dashboard Loaded - the dashboard frame has been loaded successfully

• Advertiser Loaded - the advertiser for the dashboard has been loaded successfully

• Tab Loaded - a page change in the dashboard was initiated

• Date Changed - the date range has been changed for the dashboard

• Dashboard Export Requested - the active user has clicked the link to generate and

  download the report version of the dashboard

• Dashboard Export Complete - the download was completed

• Logout - the user has logged out of the dashboard