examples/analytics-iframe-transport-remote-frame.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Requests Frame</title>
    <script>
      /**
       * To receive analytics events in a third-party frame, you must
       * implement window.onNewContextInstance, with this signature.
       * @param context  Call onAnalyticsEvent() on this, passing your
       * function which will receive the analytics events.
       */
      window.onNewContextInstance = function(context) {
        /**
         * Within the window.onNewContextInstance method, you
         * must create a function which processes an event, and
         * pass that function to context.onAnalyticsEvent().
         * @param {string} event The event message received from AMP Analytics
         */
        context.onAnalyticsEvent(function(event) {
          // Now, do something meaningful with the AMP Analytics event
          try {
            console.log('The page at: ' + window.location.href +
                ' has received an event: ' + event);
          } catch (e) { }

          // Optionally, you may send a response containing key/value pairs, to
          // be used by the amp-ad-exit of the creative which generated the
          // event.
          context.sendResponseToCreative({'collected-data': 'abc'});
        });
      };

      // Load the script specified in the iframe’s name attribute:
      try {
        var url = JSON.parse(window.name).scriptSrc;
        if (url && url.startsWith('https://3p.ampproject.net/')) {
          script = document.createElement('script');
          script.src = url;
          document.head.appendChild(script);
          // The script will be loaded, and will call onNewContextInstance()
        } else {
          try {
            console.warn('Received invalid URL - risk of XSS! ' + url);
          } catch (e) { }
        }
      } catch (e) {
        try {
          console.warn('Caught exception parsing window.name!', e);
        } catch (e2) { }
      }
    </script>
  </head>
  <!-- The frame will not be visible, so there is no need for a body tag. -->
</html>