missing forwareded headers

when using the oidc plugin a few forwarded headers got missing.

Without using the oidc plugin I get this:

X-Forwarded-Host: whoami.domain.tld
X-Forwarded-Port: 443
X-Forwarded-Proto: https
X-Forwarded-Server: a228d1c86e24

when using the plugin the only forwarded header I got is this: X-Forwarded-For: xx.xx.xxx.xxx

[travisghansen]

That’s what I was trying to suggest above at first. You’re telling traffic to forward the given headers from the auth server to the backend service. The auth server (eas) is not sending X-Forwarded-Foo headers in it’s response to traefik, so traefik is trying to replace those being sent to the backing service as set by eas…which is empty/not there.

[travisghansen]

The regex behavior is potentially a bit weird FYI. I would expect the regex to not replace all headers in the original request passing the regex but rather would expect it to be a sort of allow list treating those that are returned by the auth service to be set to whatever the auth service responds with.