Refused to execute script because its MIME type ('text/css') is not executable, and strict MIME type checking is enabled

Questions
1

Hello,
This is the first time I’ve come across this…
After logging-in, Umbraco loads empty and the image below is displayed in the Chrome dev tools. ( Umbraco version 7.1xx )

This is our main Production website. Without a working Umbraco the site is not only useless but also can not sell our products or support existing customers.

I have 4 years experience with Umbraco and I’ve never come across this, any help is appreciated !!!

Thanks!

enter image description here
enter image description here1000×316 22 KB

The page does have code in it though…

enter image description here
enter image description here1812×821 57 KB

This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/107971-refused-to-execute-script-because-its-mime-type-textcss-is-not-executable-and-strict-mime-type-checking-is-enabled