Trick instagram in-app browser to open in system browser

gistfile1.txt

<script type="text/javascript">
    // detect instagram in-app browser on android and force a redirect
    if(navigator.userAgent.includes("Instagram") && navigator.userAgent.includes("Android")){
        var socialsRedirectURL = encodeURIComponent(window.location.href);
        window.location.href = "https://yourdomain.example/socialredirect.php?redirect=" + socialsRedirectURL;
    }
</script>

socialredirect.php

<?php
    $userAgent = $_SERVER['HTTP_USER_AGENT'];
    $redirectURL = $_GET['redirect'];

    if (strpos($userAgent, 'Instagram') && strpos($userAgent, 'Android')) {
        // trick the android instagram in-app by trying to download a file.
        // This will open the link in the system browser instead.
        header('Content-type: application/pdf');
        header('Content-Disposition: inline; filename=dummy');
        header('Content-Transfer-Encoding: binary');
        header('Accept-Ranges: bytes');
    }
    else {
        header('Location: ' . $redirectURL);
    }
?>

Anyone knows if this works for iOS?

I've tested it and it does not work for iOS

Not working for android also, any other solution?