I’m new to web developement so I’m sorry in advance because I assume this is a pretty simple question.

I’m currently hosting a website on hostinger – deployed straight from my github repo.

Currently, someone is able to type files directly in the url

e.g. https://mywebsite.com/index.css to see the css in that file being used or https://mywebsite.com/script.js to see the js code in that file

Is this a problem? I assume it is as other websites prevent this from happening by either redirecting at that url or just returning a 403 error.

If it is a problem, how would I go about doing the same?