Index: openacs-4/packages/xotcl-core/tcl/context-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-core/tcl/context-procs.tcl,v
diff -u -N -r1.75.2.17 -r1.75.2.18
--- openacs-4/packages/xotcl-core/tcl/context-procs.tcl	6 Dec 2020 08:37:05 -0000	1.75.2.17
+++ openacs-4/packages/xotcl-core/tcl/context-procs.tcl	7 Dec 2020 18:50:07 -0000	1.75.2.18
@@ -251,7 +251,7 @@
 
     if {![info exists url]} {
       #:log "--CONN ns_conn url"
-      set url [ns_conn url]
+      set url [expr {[ns_conn isconnected] ? [ns_conn url] : ""}]
     }
     set package_id [:require_package_id_from_url -package_id $package_id $url]
     #:log "--i [self args] URL='$url', pkg=$package_id"