Index: openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl,v
diff -u -r1.153.2.47 -r1.153.2.48
--- openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl	11 Jan 2022 08:18:30 -0000	1.153.2.47
+++ openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl	25 Jan 2022 23:10:37 -0000	1.153.2.48
@@ -1674,9 +1674,12 @@
                                 && [ns_config "ns/parameters" ReverseProxyMode false]
                             } {
                                 #
-                                # Try to get the address provided by a
-                                # reverse proxy such as NGINX via
-                                # X-Forwarded-For, if available.
+                                # In case, we have an older
+                                # NaviServer, try to get the address
+                                # provided by a reverse proxy such as
+                                # NGINX via X-Forwarded-For, if
+                                # available. Note that in this case
+                                # there is no validation happending.
                                 #
                                 set headers [ns_conn headers]
                                 set i [ns_set ifind $headers "X-Forwarded-For"]