Index: openacs-4/packages/survey/www/admin/survey-preview.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/survey/www/admin/survey-preview.tcl,v
diff -u -N -r1.7 -r1.8
--- openacs-4/packages/survey/www/admin/survey-preview.tcl	27 Jun 2015 20:46:16 -0000	1.7
+++ openacs-4/packages/survey/www/admin/survey-preview.tcl	7 Aug 2017 23:48:29 -0000	1.8
@@ -13,7 +13,7 @@
     
     survey_id:naturalnum,notnull
     {section_id:naturalnum ""}
-    return_url:optional
+    return_url:localurl,optional
 
 } -validate {
     survey_exists -requires {survey_id} {