[jboss-jira] [JBoss JIRA] (WFLY-13483) Add reuse-x-forwarded support to mod-cluster filter and reverse-proxy handler

[Masafumi Miura (Jira)]

     [ https://issues.redhat.com/browse/WFLY-13483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Masafumi Miura reassigned WFLY-13483:
-------------------------------------

    Assignee: Flavia Rainone  (was: Brian Stansberry)


> Add reuse-x-forwarded support to mod-cluster filter and reverse-proxy handler
> -----------------------------------------------------------------------------
>
>                 Key: WFLY-13483
>                 URL: https://issues.redhat.com/browse/WFLY-13483
>             Project: WildFly
>          Issue Type: Enhancement
>          Components: Web (Undertow)
>    Affects Versions: 19.1.0.Final
>            Reporter: Masafumi Miura
>            Assignee: Flavia Rainone
>            Priority: Major
>
> Undertow has setReuseXForwarded() method in the builder API of ModCluster and ProxyHandler to enable support to reuse X-Forwarded-* request headers (like X-Forwarded-For header). 
> However, the undertow subsystem does not expose it as the configurable parameter of <mod-cluster> and <reverse-proxy>.
> This parameter is useful when the undertow load balance proxy is backed by another proxy server. In such a case, the front-end proxy adds X-Forwarded-* request headers to provide information about the original requester. 
> The current implementation is unable to reuse it and overwrites it with its own information.



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