Thanks for your nice project.

I understand that deleting or not saving expired cookies from the file is normal behavior. But sometimes some sites return tokens in the cookie that, despite the expiration of the cookie date and removal from the browser, that token is still valid in subsequent requests and there is no need to request again to get that token. So I don't need that cookie to be deleted.
I have to solve this problem.

It might be a good idea to add a parameter to the main class to select and manage this feature.