Here’s how to clear the Cache and Cookies on your iPad web browsers.
For Safari:
Settings –> Safari
Click the “Clear Cookies and Data” button
For Chrome:
Fire up Chrome
Click the Menu icon [top right, looks like 3 lines]
Settings
Under Advanced –> Privacy
Click “Clear Cache” & “Clear Cookies, Site Data”
For Firefox:
Fire up Firefox
Click the menu, top right [looks like 3 lines]
Look for “Settings”
Clear Private Data
Select all the options and click “Clear Private Data”