Status mismatch in header_rewrite

[jasmine-nahrain]

The status parsed through resources in the exec func of a header_rewrite config can be different to the status seen in headers.

e.g.

Config #1
cond %{READ_RESPONSE_HDR_HOOK}
cond %{STATUS} = 400
  set-status 404

Config #2
cond %{READ_RESPONSE_HDR_HOOK}
cond %{STATUS} = 404
  set-status 410

If config 1 is fired first, config 2 never runs. Despite the fact that config 1 changes the status, because all rules are evaluated once before execution, the change of status is not recognised by config 2.

https://github.com/apache/trafficserver/blob/b46f5d061af455dc75956346da3308788381b30d/plugins/header_rewrite/header_rewrite.cc#L306-L319

[bryancall]

Verify the behavior for 8.x and if it is the same as 9.x, then we should document it.

[jasmine-nahrain]

Can confirm behaviour is the same in 8.1.x

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community.