File not updating on localhost
Have you tried to bring up the developer console (ctr shift j) and right click on the refresh icon using the "Empty Cache and Hard Reload" option?
- Ctrl + Shift + Del
- Clear all cached data*
In the newer versions of browsers it can be different like clear only files and images cache or something else similar to this.
- Ctrl + F5 should be enough.
On Mac you right click the reload button and click "Empty Cache and Hard Reload". Sometimes, though, it's enough to just do a "Hard Reload" (cmd + shift + R).