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https://issues.apache.org/jira/browse/TS-3652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14569726#comment-14569726
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Sudheer Vinukonda commented on TS-3652:
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Actually, the current behavior is already to use the
Location-header-as-cache-key always (ignoring anything set in the cache key by
API earlier). After discussing more on the IRC, it seems this is not a change
that can be done without (possibly) resulting in more confusion or problems,
so, just holding off on this for now.
> During 3xx redirect follow, TS uses the redirect url as the cache key
> ignoring any cache key set via API
> --------------------------------------------------------------------------------------------------------
>
> Key: TS-3652
> URL: https://issues.apache.org/jira/browse/TS-3652
> Project: Traffic Server
> Issue Type: Bug
> Components: HTTP
> Reporter: Sudheer Vinukonda
>
> Currently, during 3xx redirect follow, TS uses the redirect url (as received
> in the *Location* header of the 3xx response) as the cache key for storing
> the subsequent response to the redirect follow request. This works fine in
> most cases, since, the original client request would have cached the 3xx
> response and the final response would still be derived using the redirect
> follow url. This also allows direct requests to the redirect follow location
> be served from the cache efficiently.
> However, this is not desirable in some cases, especially when there's a TS
> API (plugin) modifying the cache key and wanting to store the final response
> against the modified cache key directly.
> Proposing to add a config setting to allow storing API set cache key during
> redirect follow.
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