title: How to check WKWebView has HTML string loaded
body: <p>Currently, WKWebView does NOT support loading local file with URLRequest. Details can be read at: <a href="https://stackoverflow.com/questions/24882834/wkwebview-not-working-in-ios-8-beta-4">this link here</a></p>
  
  <p>I tried to create a workaround by reading my local html file and use <code>webView.loadHTMLString</code> to manually tell web view to render.</p>
  
  <p>How to I know if <code>webView</code> has loaded with HTML, as if I check <code>webView.URL</code> to see if it has loaded with an URL.</p>
  
  <p>I truly appreciate your help!</p>