---
title: "Perspective Session Proxy Considerations"
---

# Perspective Session Proxy Considerations

> In cases where a reverse proxy or other middleware is located between the Gateway and a running Perspective session, then the proxy server will need to whitelist several custom headers. Doing so insures that the proxy allows requests from the session to pass through to the Gateway.

## Custom Headers

### Prior to 8.1.17

- client_timezone
- device_id
- device_type
- version_code
- perspective-session-id
- designer-session-id

### 8.1.17+

- client-timezone
- device-id
- device-type
- version-code
- perspective-session-id
- designer-session-id

## Support for Proxy Forwarding of Remote HTTP Client Details

A [**Use Proxy Forwarded Headers**](/platform/gateway/config/web-server-settings/web-server-settings.md#http-and-https-settings) setting is now available on the Gateway **Network** > **Network Settings** > **Web Server** page under the HTTP Settings section. It allows the Gateway to use a reverse proxy’s HTTP client details instead of the reverse-proxy itself.