Css Not Being Applied In Flask App

I am using flask and Jinja templates. None of my CSS is being applied, except for bootstrap which is being downloaded from an external host. Here is the line in my base template f

Solution 1:

I have no idea what was happening here. This issue has been ongoing for days.

To fix it I simply copied the line that loads the CSS, saved my project, pasted it back in, and ran the server. Mass confusion.

Solution 2:

For anyone else still having issues with this I found this that suggests the CSS is not being "hard refreshed".

I fixed this issue on my Mac in Chrome by holding down both ⌘ Cmd+⇧ Shift and pressing R.