Hi @lingvist_dev,
The appended script is expected behavior. The UWT tag isn’t complete without this script fully intact. Here is an example of the UWT tag in it’s entirety.
<!-- Twitter universal website tag code -->
<script>
!function(e,t,n,s,u,a){e.twq||(s=e.twq=function(){s.exe?s.exe.apply(s,arguments):s.queue.push(arguments);
},s.version='1.1',s.queue=[],u=t.createElement(n),u.async=!0,u.src='//tellapart-test.s3.amazonaws.com/brent_uwt.js',
a=t.getElementsByTagName(n)[0],a.parentNode.insertBefore(u,a))}(window,document,'script');
// Insert Twitter Pixel ID and Standard Event data below
twq('init','nxlka');
twq('track','PageView');
</script>
<!-- End Twitter universal website tag code -->
Regarding the Twitter Pixel Helper errors, that happens when the same Universal Website Tag ID is called repeatedly on a given page. If the code above is only executed once, then you would not see this error.