NSData *cookiesData = [NSKeyedArchiver archivedDataWithRootObject: [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]];
        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
        [defaults setObject: cookiesData forKey:@"Cookie"];
        [defaults synchronize];

 NSArray *cookies = [NSKeyedUnarchiver unarchiveObjectWithData:[[NSUserDefaults standardUserDefaults] objectForKey:@"Cookie"]];
        NSHTTPCookieStorage * cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
        for (NSHTTPCookie * cookie in cookies){
          [cookieStorage setCookie: cookie];
        }

 NSHTTPCookieStorage *manager = [NSHTTPCookieStorage sharedHTTPCookieStorage];
        NSArray *cookieStorage = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];
        for (NSHTTPCookie *cookie in cookieStorage) {
          [manager deleteCookie:cookie];
        }

 [[NSUserDefaults standardUserDefaults] removeObjectForKey:@"Cookie"];
        [defaults synchronize];