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fix: forward request Host to errors middleware service

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Co-authored-by: Romain <rtribotte@users.noreply.github.com>
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Kevin Pollet 2021-09-27 17:40:13 +02:00 • committed by GitHub
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6
docs/content/middlewares/http/errorpages.md
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@ -8,6 +8,7 @@ It Has Never Been Easier to Say That Something Went Wrong
The ErrorPage middleware returns a custom page in lieu of the default, according to configured ranges of HTTP Status codes.
!!! important
The error page itself is _not_ hosted by Traefik.
## Configuration Examples
@ -112,6 +113,11 @@ The service that will serve the new requested error page.
In Kubernetes, you need to reference a Kubernetes Service instead of a Traefik service.
!!! info "Host Header"
By default, the client `Host` header value is forwarded to the configured error [service](#service).
To forward the `Host` value corresponding to the configured error service URL, the [passHostHeader](../../../routing/services/#pass-host-header) option must be set to `false`.
### `query`
The URL for the error page (hosted by `service`). You can use the `{status}` variable in the `query` option in order to insert the status code in the URL.

8
docs/content/migration/v2.md
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@ -415,3 +415,11 @@ For more advanced use cases, you can use either the [RedirectScheme middleware](
Following up on the deprecation started [previously](#x509-commonname-deprecation),
as the `x509ignoreCN=0` value for the `GODEBUG` is [deprecated in Go 1.17](https://tip.golang.org/doc/go1.17#crypto/x509),
the legacy behavior related to the CommonName field can not be enabled at all anymore.
## v2.5.3 to v2.5.4
### Errors middleware
In `v2.5.4`, when the errors service is configured with the [`PassHostHeader`](../routing/services/index.md#pass-host-header) option to `true` (default),
the forwarded Host header value is now set to the client request Host value and not `0.0.0.0`.
Check out the [Errors middleware](../middlewares/http/errorpages.md#service) documentation for more details.