View Controller for Peekaboo iFrame

ViewController.swift

import UIKit

class ViewController: UIViewController, UIWebViewDelegate {
    
    
    @IBOutlet weak var webView: UIWebView!
    
    override func viewDidLoad() {
        super.viewDidLoad();
        
        let url = URL(string: "https://*.peekaboo.guru"); // Replace * with your host
        let request = URLRequest(url: url!) as URLRequest;
        webView.loadRequest(request);
    }
    
    func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
        if navigationType == UIWebViewNavigationType.linkClicked {
            print(request);
            if (request.url?.host! == "*.peekaboo.guru"){ // Replace * with your host
                return true
            } else {
                UIApplication.shared.open(request.url!, options: [:], completionHandler: nil)
                return false
            }
        }
        return true
    }

}