I have always had my mtm code inline but because I am setting up a csp security header I thought it would be a good idea to move it to a file. MTM still works but grav.user.username is not being picked up anymore. I am not a developer, maybe I am doing something really dumb, any one care to offer some help?
<script type="text/javascript">
var _mtm = _mtm || [];
_mtm.push({'setUserId': '{{ grav.user.username }}', 'mtm.startTime': (new Date().getTime()), 'event': 'mtm.Start'});
var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
g.type='text/javascript'; g.async=true; g.defer=true; g.src='container.js'; s.parentNode.insertBefore(g,s);
</script>