Add support for the letting the authorization service tell Envoy which auth related headers to remove once the authorization server is done with them, so that the upstream does not see them.
Signed-off-by: Martin Matusiak <numerodix@gmail.com>
Mirrored from https://github.com/envoyproxy/envoy @ 228c8ad78433c19b61eeaf9aad1c38ec1f2c75cc