title: How can I enable VoiceOver for webview content on tableview
body: <p>Normally, <code>VoiceOver</code> correctly reads web contents loaded with <code>WKWebView</code> and it is possible to read buttons and links.</p>
  
  <p>However,　when I added <code>WKWebView</code> on <code>UITableViewCell</code> and displayed in <code>UITableVIew</code>, <code>VoiceOver</code> could not recognize it.</p>
  
  <p>According to the tableview document of apple, in order to make each content on <code>UITableViewCell</code> recognized by <code>VoiceOver</code> separately,
  It is necessary to set <code>isAccessibilityElement</code> of cell to false and set <code>isAccessibilityElement</code> of view to be recognized to be true.</p>
  
  <p>but if <code>isAccesibilityElement</code> of<code>WKWebView</code> is set to true, view itself is focused and we can not recognize the inside web contents.</p>
  
  <p>Also, when <code>VoiceOver</code> was enabled for the first time after loading the Web content, it performed strange behavior that Web content could be recognized.</p>
  
  <p>I suspected the problem of <code>VoiceOver</code> content recognition timing, I tried running</p>
  
  <pre><code>UIAccessibilityPostNotification(UIAccessibilityLayoutChangedNotification, nil)
  </code></pre>
  
  <p>or</p>
  
  <pre><code>UIAccessibilityPostNotification(UIAccessibilityScreenChangedNotification, nil)
  </code></pre>
  
  <p>after loading the web content, but it did not get a good result.</p>
  
  <p>Is there a good way to handle contents in <code>wkwebview</code> on <code>tableView</code> to <code>VoiceOver</code>?</p>