Index: openacs-4/packages/acs-subsite/www/register/index.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/www/register/index.tcl,v
diff -u -r1.15 -r1.16
--- openacs-4/packages/acs-subsite/www/register/index.tcl	7 Aug 2017 23:47:59 -0000	1.15
+++ openacs-4/packages/acs-subsite/www/register/index.tcl	3 Sep 2024 15:37:34 -0000	1.16
@@ -15,14 +15,25 @@
     }
 }
 
+#
+# Avoid page caching, across all browsers, no matter how the other
+# site wide caching parameters are set. For discussion and details,
+# see:
+#
+# https://stackoverflow.com/questions/49547/how-to-control-web-page-caching-across-all-browsers
+#
+template::head::add_meta -http_equiv Cache-Control -content "no-cache, no-store, must-revalidate" ;# HTTP/1.1
+template::head::add_meta -http_equiv Pragma -content "no-cache" ;# HTTP/1.0
+template::head::add_meta -http_equiv Expires -content "0" ;# Proxies
+
 set subsite_id [ad_conn subsite_id]
 set login_template [parameter::get -parameter "LoginTemplate" -package_id $subsite_id]
 
 if {$login_template eq ""} {
     set login_template "/packages/acs-subsite/lib/login"
 }
 
-ns_log notice "register/index.tcl: login_template <$login_template> host_node_id <$host_node_id>"
+#ns_log notice "register/index.tcl: login_template <$login_template> host_node_id <$host_node_id>"
 
 # Local variables:
 #    mode: tcl