Find the original hostname of the orginial Api caller

[pakilodi]

Hello everyone,

i' m trying to get the original hostname of the original API caller.

I'm sending the request to Apigee through ngrok with a Spring boot application, and the endpoint of the exposed ngrok is this :

https://535a16a49bf6.ngrok.io/reverse/apigee

if I inspect the header that i sent with the request , i see the Host header correctly set in 535a16a49bf6.ngrok.io.

Howewer in Apigee,if i get "request.header.host" in a Javascript policy, in Preflow request, i see that Apigee override the Host header setting the value of the target endpoint.

I've tried all the solutions found in this forum, but nobody works. How i can retrieve the original hostname of the caller?

Thanks