I want to set HTTP keep-alive ON / OFF in the Application Gateway settings
When the Application Gateway is in the process of forwarding an HTTP request to the backend, Connection Header Value in forwarding HTTP request is "keep-alive".
Therefore, to disable HTTP keep-alive in the process of forwarding an HTTP request to the backend, it must be set in the backend settings.
But Some customers using Application Gateway may also have a requirement that the backend settings can't be set.
Even for such customers, it would be more convenient to be able to disable keep-alive in Application Gateway settings.