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https://issues.apache.org/jira/browse/TS-3656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14615904#comment-14615904
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Sudheer Vinukonda commented on TS-3656:
---------------------------------------

Fyi - Like I mentioned on the PR, I've (successfully) convinced users on more 
than one occasion, not to use internal 3xx redirect follow on POSTs. It's not 
that difficult, given the ambiguities and complexities involved.

> Activating follow redirection in send server response hook does not work for 
> post
> ---------------------------------------------------------------------------------
>
>                 Key: TS-3656
>                 URL: https://issues.apache.org/jira/browse/TS-3656
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: HTTP
>            Reporter: Susan Hinrichs
>            Assignee: Susan Hinrichs
>             Fix For: 6.0.0
>
>
> If you have a plugin on the TS_HTTP_SEND_RESPONSE_HDR_HOOK, calls 
> TSHttpTxnFollowRedirect(txn, 1), redirecting a POST request will fail.
> In the not so bad case, the POST request will be redirected to the new 
> location, but the POST data will be lost.
> In the more bad case, ATS will crash.
> The issue is that the post_redirect buffers are freed early on.  One could 
> delay the post_redirect deallocation until later in the transaction.  



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