Configuring ghost to run on subdomain

Hey guys, so I have setup a blog.example.com, and I have ProxyPassReverseed it to be used in my TLD. So basically the config should render the blog.example.com's content to example.com/blog, which it is, but when fetching the JS or CSS I get a 404. So is there a way to customize the actual URL for assets? Or should I handle this in Apache’s vhost config?

My point is, if we can change the URL of Nav items in Design section, is it possible to do so for assets as well ?

The actual blog is here klanto.com/blog

you can see what’s going there.