how to prevent iOS safari alert when trying to open non-installed native app?

Question

I\'ve been looking for a way to open a native iOS app from the browser. I found a decent solution here: Is it possible to register a http+domain-based URL Scheme for iPhone

Answer 1

Here is a solution that works for me:

var timeout;

function preventPopup() {
    clearTimeout(timeout);
    timeout = null;
    window.removeEventListener('pagehide', preventPopup);
}

function openApp() {    
    $('