Ответ 1
WKWebView
имеет конфигурацию для отключения JavaScript, проверьте Apple reference.
var javaScriptEnabled: Bool
Обновление
let preferences = WKPreferences()
preferences.javaScriptEnabled = false
// Create a configuration for the preferences
let configuration = WKWebViewConfiguration()
configuration.preferences = preferences
// Instantiate the web view
webView = WKWebView(frame: view.bounds, configuration: configuration)
// Load page
if let theWebView = webView{
let url = NSURL(string: "http://www.apple.com")
let urlRequest = NSURLRequest(URL: url!)
theWebView.loadRequest(urlRequest)
theWebView.navigationDelegate = self
view.addSubview(theWebView)
}