A hard refresh clears your browser cache for a specific page, which forces it to load the most recent version of that page. This could include new scripts, styles, or features.
Important: Clicking the "Refresh" arrow on your browser address bar is not a hard refresh. Here's how you can clear your cache through a hard refresh on any browser:
Google Chrome
Windows users: hold down Ctrl and then press F5 on your keyboard
Mac users: hold down Cmd and Shift and then press R on your keyboard
Firefox
For Windows users: hold down Ctrl and then press F5 on your keyboard
Mac users: hold down? Cmd and ? Shift and then press R on your keyboard
Safari (Mac)
Go to Safari > Empty Cache, or hit Opt + Cmd + E
To refresh, click the refresh button on the address bar or press Cmd + R
Internet Explorer/Microsoft Edge (Windows)
Hold down Ctrl and then press F5 on your keyboard