Change base path
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.45.0/codemirror.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/clusterize.js/0.18.0/clusterize.min.js"></script>
- <script>LANGUAGE_BASE_URL = "js";</script>
+ <script>LANGUAGE_BASE_URL = "tree-sitter-elm/js";</script>
<script src=js/tree-sitter.js></script>
<script src=js/playground.js></script>
