I have that error on my site with that simple script (code from Intercom integration). I don't know if it is an Intercom error or I missed something on the setup?
<script>
window.intercomSettings = {
app_id: "cgltl5q7"
};
</script>
<script>
// We pre-filled your app ID in the widget URL: 'https://widget.intercom.io/widget/cgltl5q7#39;
(function(){var w=window;var ic=w.Intercom;if(typeof ic==="function"){ic('reattach_activator');ic('update',w.intercomSettings);}else{var d=document;var i=function(){i.c(arguments);};i.q=[];i.c=function(args){i.q.push(args);};w.Intercom=i;var l=function(){var s=d.createElement('script');s.type='text/javascript';s.async=true;s.src='https://widget.intercom.io/widget/cgltl5q7#39;;var x=d.getElementsByTagName('script')[0];x.parentNode.insertBefore(s,x);};if(w.attachEvent){w.attachEvent('onload',l);}else{w.addEventListener('load',l,false);}}})();
</script>
