     public func safariViewControllerDidFinish(controller: SFSafariViewController) {
         controller.dismissViewControllerAnimated(true, completion: nil)
     }
+    
+    public func openURLUsingResponder(url:NSURL) {
+        
+        var responder = self.nextResponder()
+        while responder != nil {
+            
+            if responder is UIApplication {
+                break
+            } else {
+                responder = responder?.nextResponder()
+            }
+        }
+        
+        if let application = responder as? UIApplication {
+            application.performSelector("openURL:", withObject: url)
+            return
+        }
+    }
+    
+    public func canOpenURL(url:NSURL) -> Bool {
+        
+        #if TD_APP_EXTENSION
+            return canOpenURLUsingResponder(url) ?? false
+        #else
+            return UIApplication.sharedApplication().canOpenURL(url)
+        #endif
+    }
+    
+    public func openURL(url:NSURL) {
+        
+        #if TD_APP_EXTENSION
+            return openURLUsingResponder(url)
+        #else
+            return UIApplication.sharedApplication().openURL(url)
+        #endif
+    }
+    
+    public func canOpenURLUsingResponder(url:NSURL) -> Bool? {
+        
+        var responder = self.nextResponder()
+        while responder != nil {
+            
+            if responder is UIApplication {
+                break
+            } else {
+                responder = responder?.nextResponder()
+            }
+        }
+        
+        if let application = responder as? UIApplication {
+            let result = application.performSelector("number_canOpenURL:", withObject: url)
+            return result?.takeUnretainedValue() as? Bool
+        }
+        
+        return false
+    }
 }
    */
    public func openInSafari(url:NSURL) {
        
        #if TD_APP_EXTENSION
            
            if #available(iOS 9, *) {
                
                let vc = SFSafariViewController(URL: url)
                vc.delegate = self
                self.presentViewController(vc, animated: true, completion: nil)
                
            }
            
        #else
            
            if #available(iOS 9, *) {
                
                let vc = SFSafariViewController(URL: url)
                vc.delegate = self
                self.presentViewController(vc, animated: true, completion: nil)
                
            } else if UIApplication.sharedApplication().canOpenURL(url) {
                UIApplication.sharedApplication().openURL(url)
            }
        
        #endif
    }
    

            } else {
                openInSafari(url)
            }
    }
    
    /**
