[PhilJ]

Just a tip, if you want to iframe something quickly, like a support app, that resizes automatically, you can add code like this to a static page or wherever...

<iframe class="w-100 border-0" id="myIFrame" name="myIFrame" src="./path/to/your/app" onload="updateIframe()" scrolling="no"></iframe>
<script src="{$AltSkinDir}/js/plugins/iframe/dynifs.min.js"></script>
<script>
function updateIframe() { 
   DYNIFS.resize('myIFrame');
}
setInterval(updateIframe, 500);
</script>

You can see a demo here.