We use 'Route via HTTP' assertion in CA API Gateway 9.3
Every Original Request Header value are forwarded to the back-end.
But we need to override only one, the 'host' value,
because the back-end have to know the original request host.
We tried to use 'Manage Transport Properties/Headers' but it only usseful for the Response Header, not the Request Header.
Is there a simple way to do that with 'Route via HTTP' or around 'Route via HTTP' ?