How to CLEAR CACHE & use Private Mode on Browsers
Sometimes you need to clear your browser's cache or force a refresh to update game content and check if things are working properly or not.
Below you will find some guides that will help you clearing your browser's cache or force a refresh to discard the current cache.
Force a Reload (Bypass cache)
This option forces your browser to reload all data, in most of cases it work and discard your current cache for that site.
See the link: https://kb.iu.edu/d/ahic
Manually Force Your Browser to Clear the Cache
First you close the game, then try these steps to forcibly delete the cache.
See the link:http://www.wikihow.com/Clear-Your-Browser's-Cache
How to Activate Incognito/Private Mode in Many Browsers
Generally this mode allows you to access a site/content loading all data (not using the current cache).
See the link: http://www.wikihow.com/Activate-Incognito-Mode
I hope this will help you. ^_^