How to fix its MIME type ('text/html') is not a supported stylesheet MIME type error in magento 2.3?

[yagnik_solanki]

Magento Version : 2.3.0

As per my client requirement, i was upgraded magento 2.3.0 from 2.2.6.

All functionality works properly but always show following error into inspect element console.

Please suggest me how can i fix it into magento version 2.3 ?

[Gulshan21]

Hello @yagnik_solanki,

For your problem, you can check for .htaccess file in pub/static directory.

Adding this file from a clean Magento 2 installation might solve your problem.

Problem solved? Please give 'Kudos' and accept 'Answer as Solution'.

[yagnik_solanki]

Thanks for reply,

Already tried your solution but not working well.

Also tried all solution available for this error but still error occurred.

[syedhasan]

Hi @yagnik_solanki 

To fix this issue,

1. Go to file path pub/static/

2. Check whether the .htaccess file is available (hidden file - Press ctrl+H to view it).

3. If not available, you can download .htaccess file in the file path pub/static/ and move it into your server.

4. Finally, clear your browser and Magento cache and check again.

Another way if .htaccess is present in pub/static folder try to redeploy static view files by running:

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

 ------------------------------------------------
If you've found one of my answers useful, please give"Kudos" or "Accept as Solution"

[yagnik_solanki]

Thanks for reply,

I was already tried above solution but still same error occurred after run static deploy command.