Option 1 -
Option 2 -
To completely clear your browsing data, use the instructions below. You do not need to clear your download history and app data if you don't want to, it is enough to clear "Cached Images and Files."
Select Tools (via the Gear Icon) > Safety > Delete browsing history....
(You can also access this menu by holding Ctrl + Shift + Delete).
Uncheck Preserve Favorites website data and History
Check both Temporary Internet Files and Cookies
Safari is the default browser on all Mac iOS computers.
Click Safari in the upper left hand side of your screen (next to the Apple icon). In the menu that appears, click Preferences.
In the window that appears, click the Privacy tab. Click the button Remove All Website Data....
Click Remove Now in the pop up window that appears.