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I have an unbounce landing page that I am trying to pass a variable that is stored in SessionStorage to the native unbounce popup. Since the popup shows as an iFrame, I am trying to use postMessage in JavaScript to send that variable but it doesn’t seem to be working for me. Has anyone successfully managed to do this?

To clarify, I have seen a bunch of stuff sending variables from the popup to the parent page but not the other way around. Any help would be much appreciated!

Thank you!

Hi @gr8hoops21, 

What are the 2 scripts you are using? 

 

Hi @Hristian,

I think I am doing it backwards right now but here is the code:

Landing Page JS:

<script>  
  // This will need to be specific to the URL for your popup
  const  popupOrigin = "http://ce151c01c4a64ba9b3b84af944e85d0a.pages.ubembed.com/";

  // On receiving message from the Convertable set a cookie
  window.onload = function () {
     function handleMessage (e) {
       var  eventData = JSON.stringify(e.data);

       if (e.origin.includes(popupOrigin)) {
          // Check for the message
          if  (eventData === 'variable') {
            // do whatever you need with the variable
            console.log('Test');
          }
       }
   }

  // Listen for the message from the popup
  window.addEventListener('message', handleMessage);
 }
</script>

iFrame Popup JS:

<script>
const  buttonId = "#lp-pom-button-51";
const  hostDomain = "*";

document.querySelector(buttonId).onclick =  function () {
  window.top.postMessage(JSON.stringify("variable"), hostDomain);
};
</script>

I have a button on the iFrame popup with that ID.

 

Could it potentially have any thing to do with the popup not showing up until 3 seconds after the page loads?

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