Chrome says “Resource interpreted as script but tr

Question

In FF and all, my javascript works fine. But in Chrome it gives this message:

Resource interpreted as script but transferred with MIME type text/plain.

I have checked all the script tags and they all have the MIME type="text/javascript". It even says so with jquery and jquery ui. What is wrong with Chrome?

What's the problem and the fix for this? Is it something I have to change in the 'options' of the browser or is it from the server, or do I have to tweak my code?

Answer 1

For Java Application servers such as Weblogic

1) Make sure your weblogic.xml file is free of errors

like this one:

    <?xml version = '1.0' encoding = 'windows-1252'?>
<weblogic-web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="http://www.bea.com/ns/weblogic/weblogic-web-app http://www.bea.com/ns/weblogic/weblogic-web-app/1.0/weblogic-web-app.xsd"
                  xmlns="http://www.bea.com/ns/weblogic/weblogic-web-app">
    <container-descriptor>
        <prefer-web-inf-classes>true</prefer-web-inf-classes>
    </container-descriptor>
    <context-root>MyWebApp</context-root>
</weblogic-web-app>

2) Add a mime type for javascript to your web.xml file:

    ...
        </servlet-mapping>

        <mime-mapping>    
            <extension>js</extension>        
            <mime-type>application/javascript</mime-type>        
        </mime-mapping>

        <welcome-file-list>
    ...

This will also work for other Java containers - Tomcat etc. application/javascript is currently the only valid mime-type; others like text/javascript have been deprecated.

3) You may need to clear up your browser cache or hit CTRL-F5

Answer 2

A common thing when this happens is if you've simply forgotten to include the type in your script calls. You'll have to set it explicitly, as it is - according to W3 - required:

type (content-type): This attribute specifies the scripting language of the element's contents and overrides the default scripting language. The scripting language is specified as a content type (e.g., "text/javascript"). Authors must supply a value for this attribute. There is no default value for this attribute.

Still it seems that browsers have a a default value of plain/text.

Example:

<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false&language=en"></script>

You could as well set a default for that file extension in your Apache configuration:

<IfModule mod_mime.c>
    AddType text/javascript .js
</IfModule>

Answer 3

It means that the server is sending a Javascript HTTP response with

Content-Type: text/plain

You need to configure the server to send a JavaScript response with

Content-Type: application/javascript

Answer 4

If its IIS make sure That Under your common HTTP Features you have Static Content turned on

Answer 5

If you are using Spring MVC, you can add following mvn tag to exclude resources file from Spring Dispatch Servlet

<mvc:resources mapping="/js/*.js" location="/js/"/>
<mvc:resources mapping="/css/*.css" location="/css/"/>
<mvc:resources mapping="/images/*.*" location="/images/"/>

Answer 6

I received this debug message for a sillier reason than the other answers here: This is the error message received when you don't get enough sleep and reference a js file by using the syntax for a css file. As in,

<link rel='stylesheet' type='text/css' href='clearly_javascript.js'/>

rather than

<script src='clearly_javascript.js'></script>

Thought I'd put this up here because this is the first post that comes up when searching for the error message.