加载javascript iframe时加载消息

I have a code like this:

我有这样的代码:

<div class=scrbbl-embed data-src=/event/1234/5678></div>                
<script>(function(d, s, id) {
        var js,ijs=d.getElementsByTagName(s)[0];
        if(d.getElementById(id))return;
        js=d.createElement(s);
        js.id=id;
        js.src="https://embed.scribblelive.com/widgets/embed.js";
        ijs.parentNode.insertBefore(js, ijs);
    }(document, 'script', 'scrbbl-js'));
</script> 
<div clas