remove code

MVMCoreUI/Atomic/Atoms/Views/WebView.swift

@@ -134,17 +134,17 @@ extension WebView : WKUIDelegate {
             while evaluateJavaScript "document.readyState",only works when webview contains userscrpt.otherwise, it would return WKErrorDomain Code=4 "A JavaScript exception occurred".
             so webView.isLoading to check load finished state
         */
-        webView.evaluateJavaScript("document.readyState", completionHandler: { (complete, error) in
+        if !webView.isLoading {
-           if complete == nil {
-               return
-           }
             webView.evaluateJavaScript("document.body.scrollHeight", completionHandler: { [weak self] (result, error) in
                 guard let self = self else {
                     return
                 }
+                MVMCoreDispatchUtility.performBlock(onMainThread: { [weak self] in
                     let scrollHeight = webView.scrollView.contentSize.height
-               if let height = result as? CGFloat,
+                    guard let self = self else {
-                   height < scrollHeight {
+                        return
+                    }
+                   if let height = result as? CGFloat {
                        self.webViewHeight?.constant = height
                    } else {
                        //if failed to get height from javascript, using scrollview.contensize's height
@@ -154,6 +154,7 @@ extension WebView : WKUIDelegate {
                 })
             })
         }
+    }
 
     
     public func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {