WKWebView links not working
<p>I have build a <code>Swift</code> iOS app with the only purpose to display a website with the help of <strong>WKWebView.</strong></p>

<p>This works fine, but pressing on links (e.g. on an <code>[mailto:]</code> button) doesn't work because it can't open anything!</p>

<p>Does anybody have a solution for this?</p>

<p>I have read a lot about solving this, but I don't know where to start.</p>

<p>Thanks for the help</p>

<p><strong>[UPDATE: ]</strong></p>

<p><em>The code below shows the solution</em></p>

<pre><code>import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate {

    @IBOutlet var containerView : UIView! = nil
    var webView: WKWebView?

    override func loadView() {
        super.loadView()

        self.webView = WKWebView()
        self.view = self.webView!
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        webView?.navigationDelegate = self
        let url = NSURL(string:"https://google.de")
        let req = NSURLRequest (URL: url!)
        self.webView!.loadRequest(req)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    override func prefersStatusBarHidden() -&gt; Bool {
        return true
    }

    func webView(webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -&gt; Void) {

        let url = navigationAction.request.URL?.absoluteString
        let url_elements = url!.componentsSeparatedByString(":")

        switch url_elements[0] {
        case "mailto":
            openCustomApp("mailto://", additional_info: url_elements[1])
            decisionHandler(.Cancel)

        default:

        }

        decisionHandler(.Allow)
    }

    func openCustomApp(urlScheme:String, additional_info:String){

        if let requestUrl:NSURL = NSURL(string:"\(urlScheme)"+"\(additional_info)") {
            let application:UIApplication = UIApplication.sharedApplication()
            if application.canOpenURL(requestUrl) {
                application.openURL(requestUrl)
            }
        }
    }
}
</code></pre>