From 2f9295575c0409bdd745d8703103dcd28a173d0c Mon Sep 17 00:00:00 2001
From: Eric Covener <covener@apache.org>
Date: Mon, 24 Nov 2014 03:18:39 +0000
Subject: [PATCH] surprising but confirmed by comment in mod_proxy

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1641311 13f79535-47bb-0310-9956-ffa450edef68
---
 docs/manual/mod/mod_proxy.html.en | 7 +++++++
 docs/manual/mod/mod_proxy.xml     | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/docs/manual/mod/mod_proxy.html.en b/docs/manual/mod/mod_proxy.html.en
index 21b7475f0d..1cc7488e19 100644
--- a/docs/manual/mod/mod_proxy.html.en
+++ b/docs/manual/mod/mod_proxy.html.en
@@ -1545,6 +1545,13 @@ ProxyPassReverse  /mirror/foo/ https://backend.example.com/</pre>
     <code class="directive"><a href="../mod/mod_rewrite.html#rewriterule">RewriteRule</a></code> directive with the
     <code>[P]</code> flag.</p>
 
+    <div class="note">
+      <h3>Default Substitution</h3>
+      <p>When the URL parameter doesn't use any backreferences into the regular
+      expression, the original URL will be appended to the URL parameter.
+      </p>
+    </div>
+
     <div class="warning">
       <h3>Security Warning</h3>
       <p>Take care when constructing the target URL of the rule, considering
diff --git a/docs/manual/mod/mod_proxy.xml b/docs/manual/mod/mod_proxy.xml
index 9f5260f6e7..44e372a54e 100644
--- a/docs/manual/mod/mod_proxy.xml
+++ b/docs/manual/mod/mod_proxy.xml
@@ -1379,6 +1379,13 @@ ProxyPassReverse  /mirror/foo/ https://backend.example.com/
     <directive module="mod_rewrite">RewriteRule</directive> directive with the
     <code>[P]</code> flag.</p>
 
+    <note>
+      <title>Default Substitution</title>
+      <p>When the URL parameter doesn't use any backreferences into the regular
+      expression, the original URL will be appended to the URL parameter.
+      </p>
+    </note>
+
     <note type="warning">
       <title>Security Warning</title>
       <p>Take care when constructing the target URL of the rule, considering
-- 
2.40.0