I keep getting \"Resource interpreted as other but transferred with MIME type text/javascript.\", but everything seems to be working fine. This only seems to be
The (webkit-based) browser is issuing a warning that it has decided to ignore the mimetype provided by the webserver - in this case text/javascript - and is applying a different mimetype - in this case "other".
It's a warning which users can typically ignore, but a developer might find useful when looking for clues to a problem. For this example it might explain why some javascript wasn't being executed.