ARR with sharepoint

Hi, Currently I'm trying to configure IIS to reverse proxy to Sharepoint Web Server.
I had setup ARR ro redirect all request from reverse proxy to Sharepoint.
Stated below are example of the rules.
Within the application there are code that called Reponse.Redirect which need to be redirected to external URL.
These code are being forward to the reverse proxy server rather then the external URL.
I tried to disable "reverse rewrite host in response header" but Sharepoint Web Server it routing request to the App Server.
Response are not handled by the reverse proxy after I disable "reverse rewrite host in response header".

rule name="ReverseProxyInboundRule1"
action type="Rewrite" url="{C:1}://SharePointServer/{R:1}"
Thanks.