From acea053dd5917ef7cd2c02a7680e6775a3a34244 Mon Sep 17 00:00:00 2001
From: Eric Covener <covener@apache.org>
Date: Fri, 30 Mar 2012 13:10:35 +0000
Subject: [PATCH] PR37194: give a hint about capturing something more like
 "initial" header values when a %{foo}i might have been set or changed by a
 module.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1307394 13f79535-47bb-0310-9956-ffa450edef68
---
 docs/manual/mod/mod_log_config.xml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/docs/manual/mod/mod_log_config.xml b/docs/manual/mod/mod_log_config.xml
index 85ee5c89aa..f6f995926a 100644
--- a/docs/manual/mod/mod_log_config.xml
+++ b/docs/manual/mod/mod_log_config.xml
@@ -116,7 +116,12 @@
     <tr><td><code>%{<var>VARNAME</var>}i</code></td>
         <td>The contents of <code><var>VARNAME</var>:</code> header line(s)
         in the request sent to the server. Changes made by other
-        modules (e.g. <module>mod_headers</module>) affect this.
+        modules (e.g. <module>mod_headers</module>) affect this.  If you're
+        interested in what the request header was prior to when most
+        modules would have modified it, use <module>mod_setenvif</module>
+        to copy the header into an internal environment variable and log
+        that value with the <code>%{<var>VARNAME</var>}e</code> described
+        above.
         </td></tr>
 
     <tr><td><code>%k</code></td>
-- 
2.40.0