title: Xcode: WebView refreshes/reloads after endRefreshing()
body: <p>I have an iOS app build with Xcode and Swift.</p>
  
  <p>When I pull to refresh the activityIndicator spins.
  When I release the animation/spin will stop immediately but the website only refreshes/reloads after ca. 3/4-1 seconds.</p>
  
  <p>Is there a way to show the animation/spin wheel till the end of refreshing?
  This is my code:</p>
  
  <pre><code>    func pullToRefresh() {
          self.homewebview.reload()
          self.refreshControl.endRefreshing()
  //        NSURLCache.sharedURLCache().removeAllCachedResponses()
      }
      func addRefreshControl() {
          refreshControl = UIRefreshControl()
          refreshControl.attributedTitle = NSAttributedString(string: "Einen Moment bitte…")
          refreshControl.addTarget(self, action: #selector(FirstViewController.pullToRefresh), forControlEvents:.ValueChanged)
          self.homewebview.scrollView.addSubview(refreshControl)
          refreshControl.tintColor = UIColor.blackColor()
      }
  </code></pre>