Only working on server mode, building static breaks app

[y0nei]

Describe the bug
I noticed that when running this with hugo --minify to build all the files statically will cause weird issues. The CSS files fail to get loaded into html.

Steps to reproduce

1. Just run hugo --minify instead of setting up a server
2. Open the index.html and check network tab, no css loads

Device information
Irrelevant

[y0nei]

Required settings for building to public to work:

+baseURL = '/'
languageCode = 'en-us'
title = 'My New Hugo Site'
theme = "hugo-blog-awesome"
+relativeURLs = true