If we change a file that your browser has cached, it’s going to keep serving the old, cached version of the file and you won’t see our most recent change. That’s why we ask you to clear your browser cache and then restart your browser.
Instructions for Google Chrome
https://support.google.com/accounts/answer/32050
Instructions for Mozilla Firefox
https://support.mozilla.org/en-US/kb/how-clear-firefox-cache
Instructions for Mozilla Safari
History > Clear history... > Select all history > Clear History
Browsing in private mode
When you browse privately, cookies and site data are not saved.
Google Chrome
https://support.google.com/chrome/answer/95464
The keyboard shortcut to open an Incognito window:
Windows: Press Ctrl + Shift + n
Mac: Press ⌘ + Shift + n
Mozilla Firefox
https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history
The keyboard shortcut to open a private window:
Windows: Press Ctrl + Shift + p
Mac: Press ⌘ + Shift + p