Forwarder Proxy made by SauceLabs ❤️ #
Forwarder is a production-ready, fast MITM proxy with PAC support.
It’s suitable for debugging, intercepting and manipulating HTTP traffic.
It’s used as a core component of Sauce Labs
Sauce Connect Proxy.
It is a forward proxy, which means it proxies traffic from clients to servers (e.g. browsers to websites), and supports CONNECT
requests.
It can proxy:
- HTTP/HTTPS/HTTP2 requests
- WebSockets (both HTTP and HTTPS)
- Server Sent Events (SSE)
- TCP traffic (e.g. SMTP, IMAP, etc.)
Features #
- Supports upstream HTTP(S) and SOCKS5 proxies
- Supports PAC files for upstream proxy configuration
- Supports MITM for HTTPS traffic with automatic certificate generation
- Supports custom DNS servers
- Supports augmenting requests and responses with headers
- Supports basic authentication, for websites and proxies
Running #
See the Install instructions for your platform or use the Docker image. When you have Forwarder installed, you can run it with the following command:
- forwarder run - Start HTTP (forward) proxy server
- forwarder pac eval - Evaluate a PAC file for given URL (or URLs)
- forwarder pac server - Start HTTP server that serves a PAC file
- forwarder ready - Readiness probe for the Forwarder
Asking for help #
If you have any questions about Forwarder, please feel free to ask them on the Forwarder Discussions page.