My app uses UIWebView to display a certain webpage that asks to allow pop-ups (it does this even with 'block pop-ups' switched off in settings). This address opens fine on a laptop or iPad when entered manually, because it allows a warning message saying “This site is attempting to open a pop-up window” with the Block or Allow buttons. That warning message doesn’t appear when using the UIWebView app I’m creating.
How can I make the app allow that message to appear, so the use can hit ‘allow’ which will let the page load as it is supposed to?