hide NavigationBar at webviews

@@ -15,19 +15,21 @@ import SwiftEventBus
     
     public var campaignUrl: String = ""
     public var params: String = ""
-    public var showHeader: Bool = true
+    public var showHeader: Bool = false
 
     public override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
         if (!showHeader) {
-            navigationController?.setNavigationBarHidden(true, animated: animated)
+            // navigationController?.setNavigationBarHidden(true, animated: animated)
+            self.navigationController?.isNavigationBarHidden = true
         }
     }
 
     public override func viewWillDisappear(_ animated: Bool) {
         super.viewWillDisappear(animated)
         if (!showHeader) {
-            navigationController?.setNavigationBarHidden(false, animated: animated)
+            // navigationController?.setNavigationBarHidden(false, animated: animated)
+            self.navigationController?.isNavigationBarHidden = false
         }
     }