Index: openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl,v
diff -u -N -r1.153.2.27 -r1.153.2.28
--- openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl	28 Oct 2020 15:39:19 -0000	1.153.2.27
+++ openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl	21 Nov 2020 16:45:52 -0000	1.153.2.28
@@ -873,6 +873,11 @@
         error_url error_info user_id prev_url error_file feedback_id bug_package_id
     }]
 
+    if {![ns_conn isconnected]} {
+        ad_log warning "rp_report_error: request handler received error after connection was closed: $message\n$error_url"
+        return
+    }
+
     ds_add conn error $message
 
     set params [list]