I have simple index.html file which I run on port :5500 and after inspect that page, in console

Refused to apply style from ‘http://127.0.0.1:5500/FYP_FRONTEND/HTMLS/FYP_FRONTEND/CSS/style.css’ because its MIME type (‘text/html’) is not a supported stylesheet MIME type, and strict MIME checking is enabled.

Now, I don’t really understand why this happens.

The HTML includes the file like this (which I am pretty sure is correct):

<link rel="stylesheet" href="FYP_FRONTENDCSSstyle.css" />