FortiGate load balancing - add backend server response header

[jwalker]

Hello,

In FortiOS 6.x (6.0 for example):

How can I add the backend server IP / name response header.

Preferably the backend server name. 

Similar to the following:

Nginx

https://philio.me/backend-server-host-name-as-a-custom-header-with-nginx/

HAProxy

https://discourse.haproxy.org/t/force-backend-server-with-http-header/7055/5

I couldn't find this option in FortiGate load balancing feature.

[akumarr]

Kindly refer this >>> https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-add-X-forwarded-headers-to-the-traf...

[jwalker]

Thanks but I didn't ask how to get the end user's IP which requires x-forwarded-for header.

I asked how to get the backend server name / IP in the response header at the end user's browser.