Magento 2 MIME type ('text/html') is not executable, and strict MIME

Question

im new in Magento 2, and i already getting annoyed with it, i made a fresh installation, and in the browser setup all looks ok, after successfully instalation on frontend and backend im getting a error, i cant login on the administration panel, when i load the admin page is giving me this error:

Refused to execute script from '<URL>' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.

I checked online and many of the comments stated that was missing htacess, in pub/static, but everything is fine, i already clean cache, compile, deploy, etc.. I did it all, but cant understand why still i get the error...

Frontend Error:

Note: The strange thing im checking in the console error of the frontend is the error line

http://mageuniversity.local/Magento_Theme/js/responsive.js net::ERR_ABORTED 404 (Not Found)

I dont understand how the hell is looking in the root path the "Magento_Theme/js.." have no idea.

I am also got fed up with this. I have already spent my four day on this. still facing this issue. — Sandeep Sudhakaran, Jun 14 '19 at 14:14
I had this issue just now, but it was due to indicating the the wrong module in the layout/default.xml where I was referencing this, fixed that and this was fixed — Barry, Dec 02 '19 at 14:38
I was facing this issue on an Adobe Commerce Cloud project. Following below steps helped me to resolve the issue `Refused to apply style from '' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.` https://stackoverflow.com/a/75515553/9185662 — Asrar, Feb 21 '23 at 01:26

score 5 · Answer 1 · edited Mar 17 '23 at 00:33

5

Static files has not been deploy , try

php bin/magento setup:static-content:deploy -f de_DE // or your language code

Also keep dev mode on it will show errors

php bin/magento deploy:mode:set developer

If still you have same issues run the following commands

rm -rf var  generated/* pub/static/*  

chmod 777 -R var generated pub

and then again

php bin/magento setup:static-content:deploy -f
php bin/magento deploy:mode:set developer

edited Mar 17 '23 at 00:33

Rachana J

3
2

answered Feb 05 '19 at 09:00

Dexture

976
1
11
29

Tried this. still facing issue. – Sandeep Sudhakaran Jun 14 '19 at 14:16
Run these commands rm -rf var generated pub/static mkdir var generated pub/static chmod 777 -R var generated pub – Dexture Jun 17 '19 at 08:30
It's not working fine and stopped my website with 500 – AboElnouR Oct 01 '19 at 19:26

score 1 · Answer 2 · answered Feb 05 '19 at 09:44

1

Try the two magento mode production / developer

bin/magento deploy:mode:set {mode} [developer|production]

Check also the owner of all your folders, I think your magento can't create static files.

answered Feb 05 '19 at 09:44

Choussamaster

21
3

1

tried both developer and production mode. still facing this issue. – Sandeep Sudhakaran Jun 14 '19 at 14:16

score 1 · Answer 3 · answered Jun 21 '19 at 06:56

It seems you may be missing an important .htaccess file located in pub/static, make sure it is there. If not copy the one from GitHub Magento repo - https://github.com/magento/magento2

If you're not missing the file then it must be an issue with mod rewrite, make sure you've installed it and it is configured properly.

Narwal Saab · Answer 4 · 2020-02-11T05:47:43.603

1

<-- Changes in app\code\Magento\Developer\etc\di.xml -->

 Magento\Framework\App\View\Asset\MaterializationStrategy\Symlink  

    -- to --

 Magento\Framework\App\View\Asset\MaterializationStrategy\Copy

First please delete 'static' folder from 'pub/static' in magento 2 before delete this folder please copy .htaccess file from this folder in other folder in your pc. After that using cmd/shell run these commands

php bin/magento setup:static-content:deploy -f

and

php bin/magento deploy:mode:set developer

and

php bin/magento cache:clean

after runing these commands .Paste old .htaccess file into new static folder. Thats it.

Your project working now enjoy!

edited Feb 11 '20 at 05:47

answered Feb 07 '20 at 06:05

Narwal Saab

11
4

If you could add some clarity to this it would be more beneficial. – JerodG Feb 07 '20 at 06:44
Thanks for comment for more clarity in this. – Narwal Saab Feb 07 '20 at 10:59

score 1 · Answer 5 · answered Oct 13 '21 at 08:00

This error could appear when you add Js file in a wrong way. For example when you add ".js" to the end of the file.

FOR EXAMPLE:

WRONG

/*in a template*/
<script type="text/x-magento-init">
    {
        "*": {
            "Vendor_Module/js/script.js": {
                "variable": "something"
            }
        }
    }
</script>

//OR
/*in a require-config.js file */

var config = {
    config: {
        mixins: {
            'Vendor_Module/js/catalog-add-to-cart': {
                'Vendor_Module/js/catalog-add-to-cart/mixin.js': true
            }
        }
    }
};

RIGHT

/*in a template*/    
<script type="text/x-magento-init">
    {
        "*": {
            "Vendor_Module/js/script": {
                "variable": "something"
            }
        }
    }
</script>

//OR
/*in a require-config.js file */

var config = {
    config: {
        mixins: {
            'Vendor_Module/js/catalog-add-to-cart': {
                'Vendor_Module/js/catalog-add-to-cart/mixin': true
            }
        }
    }
};

score 0 · Answer 6 · answered Jul 16 '23 at 09:46

In Magento version 2.4.5-p1. I faced the same issue. In my case the javascript model path was wrong.

define([
    'ko',
    'Vendor_Module/js/model/payment/google_pay'
], function (ko) {
    'use strict';

    return ko.observableArray([]);
});

I given incorrect path Vendor_Module/js/model/google_pay correct path was

Vendor_Module/js/model/payment/google_pay

So please check the javascript file path. Thank You.

Magento 2 MIME type ('text/html') is not executable, and strict MIME

6 Answers6