iOS 8 or android:
Tap the "Home" catch (round catch on the base of your gadget) to go to your "Home" Screen.
Tap the "Settings" catch.
Look down to "Safari".
Tap on "Clear History and Website Data". ...
Tap the "Home" catch to backpedal to your "Home" Screen.
Restart your gadget by turning it off and after that on once more.