How to clear the cache or do a hard refresh in mobile Safari?
This can be done through the Settings: https://www.imyfone.com/iphone-space-saver/how-to-clear-cache-in-safari-on-ipad/


Launch the "Settings" app on your iPad through the home screen.
Scroll down the menu and select "Safari".
Scroll down to the bottom of right hand panel and tap on "Clear History and Website Data".
Confirm by tapping "Clear" from the pop-up window.




Warning: this wipes every data, save form field values, bookmarks, etc.