I saw this warning in Chrome's console for the first time today while loading a jquery.js file in a new site. I used the same <script> tag I've always used, but for some reason this page wasn't parsing the javascript file.
I finally found the solution, although the warning message seems completely unrelated to me. I thought I'd post it here because I couldn't find anything online that lead to this conclusion. The permissions on the jquery.js file were not allowing the "internet user" (me) to access the javascript file. That's why Chrome didn't warn me that the file did not exist - it did exist but it wasn't letting anyone access it. I changed the permission on the file and the browser can now parse the file and my functions are working correctly (although the warning message now says it's transferring the script with MIME type "text/plain"). Just thought I'd share. :)
