// * 새창 띄울때
    func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
        
        let loadUrl : String = navigationAction.request.url!.absoluteString
        if (loadUrl.contains("https://") || loadUrl.contains("http://")) {
            if #available(iOS 10.0,*) {
                if let aString = URL(string:(navigationAction.request.url?.absoluteString )!) {
                    UIApplication.shared.open(aString, options:[:], completionHandler: { success in
                    })
                }
            } else {
                if let aString = URL(string:(navigationAction.request.url?.absoluteString )!) {
                    UIApplication.shared.openURL(aString)
                }
            }
        } else {
            print("else")
        }
        return nil
    }

웹뷰(webview)에서 window.open() 처리하기

• Entire Code