While browser caching generally allows for faster web page loading, it can cause trouble when there have been recent changes to a website. Sometimes your browser is still operating from a local copy of the website data in your browser cache that doesn’t match the latest version on the server. As a result, a web page may look incorrect or not function properly.

To resolve the issue, you'll need to force the web browser to discard what it already has in the cache then download the latest version of the site. 

How to Perform a Hard Refresh of Your Cache

Hold down the Shift key on your keyboard and click on the reload icon on your browser’s toolbar. 

There are also keyboard shortcuts to perform the equivalent hard refresh. Because there are multiple ways to do the same action, they will be listed below:

• Chrome and Firefox for Windows: Press Ctrl+F5 (If that doesn’t work, try Shift+F5 or Ctrl+Shift+R).
• Chrome and Firefox for Mac: Press Shift+Command+R.
• Safari for Mac: There is no simple keyboard shortcut to force a hard refresh. Instead, press Command+Option+E to empty the cache, then hold down Shift and click Reload in the toolbar.