Index: openacs-4/packages/acs-templating/tcl/richtext-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-templating/tcl/richtext-procs.tcl,v
diff -u -r1.66.2.4 -r1.66.2.5
--- openacs-4/packages/acs-templating/tcl/richtext-procs.tcl	18 Feb 2020 11:53:15 -0000	1.66.2.4
+++ openacs-4/packages/acs-templating/tcl/richtext-procs.tcl	28 Sep 2020 21:04:04 -0000	1.66.2.5
@@ -449,7 +449,7 @@
         set attributes(id) $element(id)
         set package_id_templating [apm_package_id_from_key "acs-templating"]
 
-        set user_agent [string tolower [ns_set get [ns_conn headers] User-Agent]]
+        set user_agent [string tolower [ns_set iget [ns_conn headers] User-Agent]]
 
         if {[string first "safari" $user_agent] != -1} {
             if {[regexp {version/([0-9]+)[.]} $user_agent _ user_agent_version]