[Feature request] Option to not log some headers (cookies for instance)

Hello folks,

I think it would be nice if it was possible to add an option to filter out some headers (very generic) or at least an option to filter out cookies.

While this can be useful, it can also be undesirable to log the cookies. In a context where the app is used in a shared environment and developers call it directly for some tests, it could happen that users cookies are logged and could be used for impersonation. Obviously, by nature, this app has such security "issues" but it would still be nice to be able to disable logging some items when you want to be a bit safer.

まず、リクエストデータを JSON としてエコーするエントリーポイントを見つけ、リクエストヘッダーがどのように選択されるかを確認します。設定とヘッダーのフィルタリング動作を定義し、除外された Cookie や名前付きヘッダーがエコーされた出力に表示されなくなっていることを検証します。