If we were using require.js everywhere, that would be the way to do it. Since we're not, the best way is to load it once on the page that will grab this content using an AJAX request. On the CMS side, you can load it with require.js in the file `common/djangoapps/pipeline_js/templates/xmodule.js`. On the LMS side, you'll need to load it with a `<script>` tag.