samples/load-interceptor.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <script src="//www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js"></script>
    <script src="//192.168.2.3:3001/kaltura-ovp-player.js"></script>
    <script src="./playkit-cast-receiver.js"></script>
  </head>
  <body>
    <cast-media-player />
    <script>
      var receiver = new KalturaPlayer.cast.receiver.Receiver({
        logLevel: 'DEBUG',
        provider: {
          partnerId: 1091,
          env: {
            cdnUrl: 'http://qa-apache-php7.dev.kaltura.com/',
            serviceUrl: 'http://qa-apache-php7.dev.kaltura.com/api_v3'
          }
        }
      });

      var playerManager = cast.framework.CastReceiverContext.getInstance().getPlayerManager();
      playerManager.setMessageInterceptor(cast.framework.messages.MessageType.LOAD, requestData => {
        // Custom logic goes here
        return receiver.onLoad(requestData);
      });

      receiver.start();
    </script>
  </body>
</html>