Dropped https client connection doesn't drop backend proxy_pass connection

[Robert Mueller]

> I have the same problem. I really need this feature. how is this going?
> 
> >> Maxim Dounin:
> > Valentin is already worked on this, and I believe he'll be able to
> > provide a little bit more generic patch.
> 
> does this mean in the future we can use epoll to detect the client 
> connection's abort?

Yes, I haven't heard in a while what the status of this is. I'm
currently using our existing patch, but would love to drop it and
upgrade when it's included in nginx core...

Rob