title: Does Istio support proxy protocol?
body: <p>Does Istio support proxy protocol?</p>
  
  <p>I set a gateway behind an haproxy with TCP forwarding and proxy protocol ("send-proxy" flag) but it doesn't work.</p>
  
  <p>I know Envoy supports it but it seems that Istio doesn't.</p>
  
  <p>If it doesn't support it, is there another way to retrieve the source IP?</p>
  
  <p>Thanks for your help.</p>