Configure headers to drop

[dkmiller]

Proposed change

At Airbnb, we have an internal deployment of configurable-http-proxy which sits behind our company-wide authentication proxy. The jupyter-rsession-proxy extension breaks with the x-forwarded-port header set by configurable-http-proxy; so we forcibly replace it with an empty string.

That breaks some other open source IDEs (e.g. Zeppelin) so I'm wondering if there's a way to configure configurable-http-proxy to not set the x-forwarded-port header at all, while passing all other existing x-forwarded-* headers through.

Alternative options

None that I'm aware of.

Who would use this feature?

Enterprises using configurable-http-proxy behind additional proxy layers.

(Optional): Suggest a solution

A CLI flag --drop-header that can be repeatedly set and causes those header key/value pairs to be dropped entirely.

[manics]

Have you looked at Traefik Proxy? CHP is still supported, but Traefik Proxy is seeing a bit more development.