What I must know:
Ans: It's the same goes with your html file or any other static contents.
Can there be anyway to configure it to ensure that the files are loaded each time I reload the page?
A pleasant trick you should do is to append a random string towards the resource that you would like to help keep current every pageload. Ex.:
In the same manner, if you wish to always refresh a picture, just append it a random parameter:
<img src='/images/myImage.png?p=<?php print sha1(time()); ?>' />
This can be done with CSS files too.
Appending a random parameter to some resource can make the browser treat this resource as a replacement, therefore it can not be loaded from cache.
GET demands are cached within the browser. Obvious your browsers cache and hang it to check on for brand new files each time within the browser's configurations.