Index: openacs-4/packages/acs-tcl/tcl/defs-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/defs-procs.tcl,v
diff -u -N -r1.79 -r1.80
--- openacs-4/packages/acs-tcl/tcl/defs-procs.tcl	30 Jan 2019 13:49:18 -0000	1.79
+++ openacs-4/packages/acs-tcl/tcl/defs-procs.tcl	31 Jan 2019 07:44:21 -0000	1.80
@@ -530,8 +530,8 @@
 ad_proc -public ad_return_url {
     -urlencode:boolean
     -qualified:boolean
-    {-default_url /}
-    {extra_args {}}
+    {-default_url .}
+    {extra_args ""}
 } {
 
     Build a return url suitable for passing to a page you expect to return back