Supporting files not added to document head when inserted from an include

I noticed a strange thing happening with my navigation not getting the active class applied when navigating from one nav item to another, here are the steps to reproduce.

• Create a new page
• Add Bootstrap CDN
• Add AppConnect
• Right click App in the AppStructure panel and select Headers, Brand Menu Social Dark, it inserts the navigation as expected with the supporting files <script type="text/javascript" src="dmxAppConnect/dmxBootstrap4Navigation/dmxBootstrap4Navigation.js"></script>
• Add a link to all the navigation elements
• Select the entire Header element in the AppStructure panel and click Move to Include File
• Make a new page
• Add Bootstrap CDN
• Add AppConnect
• Right click App in the AppStructure panel and select Server Side Include, it inserts the navigation as expected but the supporting files <script type="text/javascript" src="dmxAppConnect/dmxBootstrap4Navigation/dmxBootstrap4Navigation.js"></script> are never added to the document head.

Hope this makes sense @George