cakephp - why do some changes NOT happen until I switch debugging to 3?

Question

Sometime I will implement changes locally and they work fine, I copy them to my remote webserver and the changed are ignored. (The code is identical.)

I go into core

Answer 1

I think it is a client-side problem. Do you have the Web Developer addon for Firefox Mozilla installed? if yes, you can easily deactivate the cache on client side just to check.

It works again if you change the debugging level because then the urls and cookie data is probably slightly different leading to a fresh reload from server. If it still does not work then it must be the server side cache...

NOTE: Beside this you can do all kind of useful things for web development with that addon like modifying css on the fly or visualizing styles as overlay on the page.