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!