Thread:Talk:Reference Tooltips/ ResourceLoader default Not working on my wiki

I'm scratching my head as to why [ResourceLoader|default] breaks this on my wiki. The .css is showing loaded by the ResourceLoader, but the .js isn't. If I eliminate [ResourceLoader|default] and make it something the user has to enable it works great. Other gadgets using [ResourceLoader|default] load and work just fine. Any ideas or suggestions greatly appreciated.