ios - WKWebView not loading webpage - renders blank screen in Swift

Question

This code is supposed to load the Apple homepage, but instead shows a blank screen.
This happens with both HTTP and HTTPS URLs.

Code:

import UIKit
import WebKit

class WebViewController: UIViewController, WKUIDelegate{

    var webView: WKWebView!

    override func loadView() {
        let webConfiguration = WKWebViewConfiguration()
        webView = WKWebView(frame: .zero, configuration: webConfiguration)
        webView.uiDelegate = self
        view = webView

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

        view.backgroundColor = .red

        let myURL = URL(string: "https://www.apple.com")
        let myRequest = URLRequest(url: myURL!)
        webView.load(myRequest)
    }
}

I have tried changing 'App Transport Security Settings' to allow arbitrary load. Didn't change anything.

Screenshots:

View hierarchy:

Safari debug console for the simulator:

Answer 1

Building an App for the Mac?

If you are building an app for the Mac, make sure to turn App Sandbox ON in your target and tick Networks Outgoing Connections.

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Update: If you prefer the long way, add the following to YourAppName.entitlements

<key>com.apple.security.app-sandbox</key>
<true/>
<key>com.apple.security.network.client</key>
<true/>