We are using istio ingress in our AKS. We are trying to use Microsoft app gateway and connecting to our backend. In our case backend is AKS. When we are trying to connect from AKS backend url application is working but when we are trying from Application gateway url it is not working. When we reached out MSFT they mentioned in their logs they can see AKS is throwing an 500 which is istio ingress loadabalancer Ip is throwing a 500. Does any one have any idea about this whether we need to use any specific if we need to use Istio ingress. Thanks.