Fix rogue pop-ups in IOS
1 Don’t tap!
Rogue pop-ups are annoying, whether in Safari, Chrome or social media. But whatever you do, don’t tap ‘OK’ or any other part of the screen, no matter how enticing the offer.
2 Close the app
Swipe up and hold (or double-tap the Home button) to call up the apps tray. Press down and tap the red ‘–’ to close (or else swipe the affected app away).
3 Activate Airplane Mode
Now stop your iphone connecting to the internet by swiping down from the upper-right of the screen (or up from the bottom edge) and tapping the Airplane icon.
4 Reopen browser
Open the browser with the pop-up and tap the tabs button (two overlapping boxes in Safari). Tap ‘X’ to close the tab and disable Airplane mode (reverse Step 3).
5 Clear browser history
It’s likely a cookie has been stored in your web browser so you’ll need to remove it. For Safari, open the Settings app, tap Safari and scroll down to the bottom of the screen.
6 Remove data
Select ‘Advanced’ and go to Website Data. Now scroll to the bottom of the screen and tap ‘Remove All Website Data’. Confirm by tapping ‘Remove Now’.