https://github.com/rcrowley/goagain/blob/master/goagain.go#L...

Not sure why it happens though, but it led to all sorts of strange intermittent issues with broken connections.

Once I replaced this logic with passing files using GetFile().Fd() instead it started working fine, so beware of this. I still wonder why it happens though.

Were you able to publish your changes either on a fork or in a PR?

https://github.com/gwatts/manners

But the code that extracts the fd without using reflection and access to the private properties is here:

https://github.com/mailgun/manners/blob/master/listener.go#L...

I think it should be fairly easy to port it to Richard's implementation