Index: openacs-4/packages/boomerang/tcl/boomerang-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/boomerang/tcl/boomerang-procs.tcl,v
diff -u -N -r1.7 -r1.8
--- openacs-4/packages/boomerang/tcl/boomerang-procs.tcl	8 Jan 2018 10:05:12 -0000	1.7
+++ openacs-4/packages/boomerang/tcl/boomerang-procs.tcl	9 Jan 2018 09:48:11 -0000	1.8
@@ -240,11 +240,11 @@
             #  - u:   URL of Page, XHR or SPA route that caused the beacon
             #
             if {![dict exists $entries r]} {
-                ns_log notice "boomerang: no r value in $entries"
-                dict set entries r ""
+                set r ""
+            } else {
+                set r [dict get $entries r]
             }
-            set r [dict get $entries r]
-            set u [dict get $entries u]
+            set u   [dict get $entries u]
             set pid [dict get $entries pid]
             if {$r ne "" && $r ne $u} {
                 set r " r $r"