Hi all,

I have this code to initialize an iframe:

    < t t-if="lang=='en_US'">
            < script id="my-corner">script for iframe	
            < /script >
     < /t >

    
I have to call a post message on contentWindow:

document.getElementById("my-corner").contentWindow.postMessage("consentTrue","destinationurl.com");

But I'm getting this error:

Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'postMessage')

Can anyone help to understand the error (I think it is due the iframe is not still full loaded)

Where I can put the code to call post message with no error?