...
In the Safari app
on your Mac, choose History > Clear History, then click the pop-up menu.Choose how far back you want your browsing history cleared. If you are having trouble accessing MySlice, we recommend clearing the history for all time.
- Go to Safari in the menu bar and choose Preferences
- Go to the Privacy tab in the dialogue box and click on Manage Website Data
- Choose the "Remove All" button at the bottom of the popup window
Clear the history and cookies from Safari on your iPhone, iPad, or iPod touch
...