 	private var topShowBarsViewConstraint: NSLayoutConstraint!
 	private var bottomShowBarsViewConstraint: NSLayoutConstraint!
 	
+	private var renderingTracker = 0
 	private var webView: WKWebView!
 	private lazy var contextMenuInteraction = UIContextMenuInteraction(delegate: self)
 	private var isFullScreenAvailable: Bool {

				startArticleExtractor()
			}
			if article != oldValue {
				reloadHTML()
			}
		}
	}

	private var isShowingExtractedArticle = false {
		didSet {
			if isShowingExtractedArticle != oldValue {
				renderPage()
			}
		}
	}
