Chrome WON'T clear cache... ctrl + F5 doesn't seem to work either
I have had a similar problem. What I find is that I need to open up the Chrome developer tools and then hit Ctrl + F5. Only then is the cache refreshed.
Update
Also, I would recommend that you select "Disable Cache" in the developers tools ("Network" tab).
Also if you right click the reload button there is a Empty Cache and Hard Relaod option
This doesn't work unless you have dev tools open. So you need to first inspect the element, then right click on the refresh button. Then you have the options of Empty Cache and Hard Reload
The only thing that worked for me was logging out of my google account. For some reason, being logged in to an account shared between various devices wasn't allowing the cache to purge properly. I tried clearing the browser cache manually, Using a 3rd party cache cleaner, flushing the DNS cache, checking the checkbox in dev tools to ignore cache, using an incognito window. Nothing worked! As soon as I logged out everything purged from the test device properly.