How do I empty Google cache?
You can clear your cache in Gmail very simply and easily. Before doing so, however, you'll want to make sure you won't be losing anything you need. Removing your Gmail cache means you'll be deleting backed-up emails as well.
What happens if I clear data on Gmail?
Scroll down, select Privacy and Security, then choose Clear browsing data. Check the box for Cached images and files and then click the Clear data button. In the list of site data and cookies stored in your Chrome browser, go to mail.google.com and select the trash can icon.