Topic-timeline api.decorateWidget call has stopped working

I spoke too soon and I need some more help with this. I added the following code in the HEAD section of a Theme Component:

<script type='text/x-handlebars' data-template-name='/connectors/timeline-controls-before/adnet'>
    <div class="side-block">
        <div id="supporters"></div>
    </div>
</script>

While this renders for me, the admin, it doesn’t display for regular users. Any idea why?