Stylesheet not loaded because of MIME-type

Question

I\'m working on a website that uses gulp to compile and browser sync to keep the browser synchronised with my changes.

The gulp task compiles everything

Answer 1

I simply referenced the CSS file (an Angular theme in my case) in the styles section of my Angular 6 build configuration in angular.json:

This does not answer the question, but it might be a suitable workaround, as it was for me.