When I was looking at a site with the Chrome Developer Tools, it had a little error icon that said “Resource interpreted as other but transferred with MIME type text/javascript” when I clicked it.
I couldn’t figure out my error at first, but eventually realized I had for some reason had a script tag with a src assigned of blank and then had javascript between the source tags.
<script type="text/javascript">doSomething();</script>
A blank url or src is of course a reference to the current page. I don’t know why it took me so long to figure that out, but once I changed the page I realized the error.
Hope this helps!