A WebKit Swift App looks like and is an example for the latest XCODE 10.5

webapp.swift

//
//  ViewController.swift
//  GoogleMe
//
//  Created by Nanobug on 10/20/19.
//  Copyright © 2019 Westgate Studio. All rights reserved.
//

//
//  ViewController.swift
//  GoogleMe
//
//  Created by Michael Moore on 10/19/19.
//  Copyright © 2019 Westgate Studio. All rights reserved.
//

import Cocoa
import WebKit


class ViewController: NSViewController {
    
    @IBOutlet weak var webView:WKWebView?
    
override func viewDidLoad()
{
    super.viewDidLoad()

    let request = URLRequest(url: URL(string: "https://google.me")!)

    webView?.load(request)
}
    }