That's enough for tonight ... gheesh.  Allow 2xx + OK (0) results from
  the subrequest to go out to the client.  This doesn't address (..)
  anomilies, which I will address in the a.m.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@89901 13f79535-47bb-0310-9956-ffa450edef68