Document limitation to ProxyPassMatch in PR 46665

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@808327 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/mod_proxy.xml b/docs/manual/mod/mod_proxy.xml
index 55080d52110180a64ec9e4c557c1275f72f33998..540450dfdb6ed9681f4952d9c6d02f74afcf8620 100644 (file)
--- a/docs/manual/mod/mod_proxy.xml
+++ b/docs/manual/mod/mod_proxy.xml
@@ -944,6 +944,12 @@ expressions</description>
     <p>will cause a local request for
     <code>http://example.com/foo/bar.gif</code> to be internally converted
     into a proxy request to <code>http://backend.example.com/foo/bar.gif</code>.</p>
+    <note><title>Note</title>
+      The URL argument must be parsable as a URL <em>before</em> regexp
+      substitutions (as well as after).  This limits the matches you can use.
+      See <a href="https://issues.apache.org/bugzilla/show_bug.cgi">PR 46665</a>
+      for details and workaround ideas.
+    </note>
 
     <p>The <code>!</code> directive is useful in situations where you don't want
     to reverse-proxy a subdirectory.</p>