How to add username field in request header on IIS server with windows authentication -

How to add username field in request header on IIS server with windows authentication -

i have web application runs on 4502 port , utilize iis server url rewrite module works reverse proxy windows authorisation. works fine can't username field on application. possible add together username field on iis server when request come? give thanks you.

iis http-headers windows-authentication reverse-proxy url-rewrite-module