GAE/J の AuthSub で This website has not registered with Google to establish a secure connection for authorization requests. の警告をなくす方法 GAE アプリから、 AuthSub 認証を使って Blogger などのデータにアクセスする際に出る警告がこちら。 This website has not registered with Google to establish a secure connection for authorization requests. We recommend that you continue the process only if you trust the following destination: (このウェブサイトは認証リクエ