Debug message "Resource interpreted as other but transferred with MIME type application/javascript"

Gary_Pearman_76242 0
Viewed 105065

OK, I understand what the messages means, but I'm really not sure what's causing it. I'm using Safari and the Web Inspector on Mac OS X, by the way.

I've got the following in my document head:

<script src="http://local.url/a/js/jquery.js" type="text/javascript"></script>
<script src="http://local.url/a/js/jquery.inplace.js" type="text/javascript"></script>

jquery.js is handled fine, but the other file causes the warning. It also seems that the javascript in this file never gets executed.

The file is being served via mod_deflate, so it is gzip encoded, but so is the other file.

Has anybody got any ideas what's causing this, or how to resolve it?

Cheers all, Gaz.

safari mime-types apache javascript
15 Answers

I don't think it is a bug, Try adding the MIME type to your .htaccess file For instance, put or add the following content to your .htaccess file (which should be in the same place of your .js or above folders)

#JavaScript
AddType application/x-javascript .js

This solved my tree "Resource interpreted as other but transfered ... " warnings. Everytime you have that kind of warning it means you don't have enough info in your .htaccess file.

BTW1: Since you are modifying .htaccess file, make sure you restart your server.

BTW2: I also could clear same warnings for GIF files in Safari 4 with this:

#GIF
AddType image/gif .gif

BTW3: For other file types: see w3schools list or htaccess-guide

user_1490080

seems to be a bug in safari / webkit. maybe this one, or any of these. try upgrading your safari. if there is no more recent stable version, try the 4 beta.

ax_689390
Admin1

You need to use a tool to view the HTTP headers sent with the file, something like LiveHTTPHeaders or HTTPFox are what I use. If the files are sent from the webserver without a MIME type, or with a default MIME type like text/plain, that might be what this error is about.

user_630940

It is because of the period in the file name. It is stupid, but anytime there is a period in the js file name you will get this error, and I have come across situations where it will actually prevent the js file from loading.

Admin1

It seems like a bug in Safari's cache handling policies.

Workaround in apache:

Header unset ETag
Header unset Last-Modified
user_1210480

I had the same issue with a css file instead of javascript. (using the xitami webserver)

what fixed for me was adding under the MIME section of xitami.cfg:

css=text/css

user_1048040

I found out that the naming of my css files was in conflict with the proxy filters

www.dating.com (which is not my site) was blocked and my css and js files were called dating.css and dating.js. The filter was blocking this. Maybe that is the case with some of you, working on corporates systems.

user_2989300

Another common cause of this error on the Mac is Apple's quarantine flag.

ls the directory containing the resource(s) in question. If you see the extended attribute indicator, i.e., the little @ symbol at the end of the permissions block (e.g. -rw-r--r--@ ) then the file could be quarantined.

Try ls -la@e and look for com.apple.quarantine

The following command will remove the quarantine:

xattr -d com.apple.quarantine /path/to/file
user_5504650

There seem to be many things that cause this. For me it was a lowercase rewrite rule in IIS. Changed the problem files (js and png) to lowercase and problem went away.

user_3243810
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