Using an upstream proxy

[clouedoc]

Hello,

How could I define an upstream proxy with utlsproxy?

Or rather, how can I edit it to allow using an upstream proxy?

I found proxychains-ng to work, but I am not completely satisfied with this, since it's hacky and adds another dependency in my stack.

[clouedoc]

An update: proxychains-ng doesn't work in Docker, so I am back to square one: making utlsproxy use an upstream proxy somehow. I am not sure how to proceed.

[saucesteals]

saucesteals/goproxy would need to add support for dialing the proxy instead of the given host and then forwarding the same CONNECT that the client sent it initially

[tobwen]

Seems like they got it working? https://github.com/rosahaj/tlsproxy