title: iOS: Problem of display the popover border in the iOS13
body: <p>The popover that I display is now bad displayed. There is a line missing on the arrow side. We can check that there is a little piece of black just at the end of the arrow. I think there is a view inside that is too long.</p>
  
  <p>Code to display the popover:  </p>
  
  <pre><code>   _popoverController = UIPopoverController(contentViewController: navController)
     _popoverController?.delegate = self
  
     let rect = slotCollectionView.cellForItem(at: indexPath)!.frame
     self._popoverController?.backgroundColor = UIColor.init(rgb: Int(quaternaryColorHexa))
     self._popoverController?.present (from: rect, in: self.slotCollectionView, permittedArrowDirections: UIPopoverArrowDirection.any, animated: true) 
  </code></pre>
  
  <p>Code to init Popover:</p>
  
  <pre><code>override func viewDidLoad()
  {
      super.viewDidLoad()
  
      self.preferredContentSize = contentSize()
      self.navigationController!.preferredContentSize = self.preferredContentSize;
  
      peopleTableView.isScrollEnabled = true
      peopleTableView.bounces = true
      peopleTableView.tableFooterView = UIView(frame: CGRect(x: 0, y: 0, width: 0, height: 0))
      peopleTableView.tableFooterView?.isHidden = true
      peopleTableView.backgroundColor = UIColor.init(rgb: Int(quinquenaryColorHexa))
  
      self.view.backgroundColor = UIColor.init(rgb: Int(quinquenaryColorHexa))
      self.view.layer.cornerRadius = 13.0
      self.view.layer.borderWidth = 1.5
      self.view.layer.borderColor = UIColor.init(rgb: Int(quaternaryColorHexa)).cgColor 
  </code></pre>
  
  <p>iOS12 display:<br>
  <a href="https://i.stack.imgur.com/sDc9D.png" rel="noreferrer"><img src="https://i.stack.imgur.com/sDc9D.png" alt="iOS12"></a><br>
  iOS13 display:<br>
  <a href="https://i.stack.imgur.com/XmElF.png" rel="noreferrer"><img src="https://i.stack.imgur.com/XmElF.png" alt="iOS13"></a>  </p>