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 happening in Safari 4 on my Mac.
I was advised to add "meta http-equiv="content-script-type" content="text/javascript"
to the header, although that did nothing.
The most common way to get the error is with the following code:
<img src="" class="blah" />
A blank url is a shortcut for the current page url, so a duplicate request is made which returns content type html. The browser is expecting an image, but instead gets html.