diff --git a/OnlineChatSdk/Classes/ChatController.swift b/OnlineChatSdk/Classes/ChatController.swift
index 52ed99a..1d0d28a 100644
--- a/OnlineChatSdk/Classes/ChatController.swift
+++ b/OnlineChatSdk/Classes/ChatController.swift
@@ -32,7 +32,6 @@ open class ChatController: UIViewController, WKNavigationDelegate, WKScriptMessa
     private static let method_destroy = "destroy"
     private static let method_pageLoaded = "pageLoaded"
 
-
     public var chatView: WKWebView!
     private var callJs: Array<String>!
     private var didFinish: Bool = false
@@ -41,7 +40,6 @@ open class ChatController: UIViewController, WKNavigationDelegate, WKScriptMessa
     private var css: String = ""
     private var alertLoading: UIAlertController?
 
-
     private static func getUnreadedMessagesCallback(_ result: NSDictionary) -> NSDictionary {
         let resultWrapper = ChatApiMessagesWrapper(result)
         if resultWrapper.getMessages().count == 0 {