I have assigned delegate to wkwebview uiDelegate and implemented it's method create web view with configuration, but it is not being called. I have even placed breakpoint but it is not hitting.
 class ViewController: UIViewController, WKUIDelegate, WKNavigationDelegate {
@IBOutlet weak var webView: WKWebView!
override func viewDidLoad() {
    super.viewDidLoad()
    webView.navigationDelegate = self
    webView.uiDelegate = self
    let requestURL = URL(string: "https://www.google.com")!
    let request = URLRequest(url: requestURL)
    webView.load(request as URLRequest)
}
func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
    let config = WKWebViewConfiguration()
    return WKWebView(frame: webView.frame, configuration: config)
}
func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
}
}