     }
     
     func endBackgroundTask() {
-        if let backgroundTask = self.backgroundTask {
-            UIApplication.shared.endBackgroundTask(backgroundTask)
-        }
-        self.backgroundTask = UIBackgroundTaskInvalid
+//        if (!isAppExtension()) {
+//            if let backgroundTask = self.backgroundTask {
+//                UIApplication.shared.endBackgroundTask(backgroundTask)
+//                self.backgroundTask = UIBackgroundTaskInvalid
+//            }
+//        }
     }
     
     func willEnterForeground() {

    let keepAliveHeader: Data = "0 ! 0 ! 0 ! 0 ! 0 ! 0 ! 0 ! ".data(using: String.Encoding.utf8)! // A special header kept to avoid timeouts
    let socketQueue = DispatchQueue(label: "xaphod.bluepeer.socketQueue", attributes: [])
    var browsingWorkaroundRestarts = 0
    var backgroundTask: UIBackgroundTaskIdentifier?
    
    enum DataTag: Int {
        case tag_HEADER = 1

        self.endBackgroundTask()
    }
    
//    func isAppExtension() -> Bool {
//        guard let bundleExecPath = Bundle.main.executablePath else {
//            assert(false, "ERROR")
//            return false
//        }
//        return bundleExecPath.hasSuffix(".appex")
//    }
    
    // Note: if I disconnect, then my delegate is expected to reconnect if needed.
    func didEnterBackground() {
//        if (!isAppExtension()) {
//            self.backgroundTask = UIApplication.shared.beginBackgroundTask(withName: "BluepeerBackgroundedTask", expirationHandler: {
//                self.endBackgroundTask()
//            })
//        }
        self.onLastBackground = (self.advertising, self.browsing)
        stopBrowsing()
        stopAdvertising()
