Index: openacs-4/packages/chat/www/chat-transcripts.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/chat-transcripts.tcl,v
diff -u -r1.2.8.1 -r1.2.8.2
--- openacs-4/packages/chat/www/chat-transcripts.tcl	20 Jun 2016 08:40:23 -0000	1.2.8.1
+++ openacs-4/packages/chat/www/chat-transcripts.tcl	9 Jun 2017 17:47:19 -0000	1.2.8.2
@@ -10,6 +10,7 @@
 
 if { [catch {set room_name [chat_room_name $room_id]} errmsg] } {
     ad_return_complaint 1 "[_ chat.Room_not_found]"
+    ad_script_abort
 }
 
 set active [room_active_status $room_id]
Index: openacs-4/packages/chat/www/html-chat.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/Attic/html-chat.tcl,v
diff -u -r1.4.4.1 -r1.4.4.2
--- openacs-4/packages/chat/www/html-chat.tcl	20 Jun 2016 08:40:23 -0000	1.4.4.1
+++ openacs-4/packages/chat/www/html-chat.tcl	9 Jun 2017 17:47:19 -0000	1.4.4.2
@@ -25,6 +25,7 @@
 
 if { [catch {set room_name [chat_room_name $room_id]} errmsg] } {
     ad_return_complaint 1 "[_ chat.Room_not_found]"
+    ad_script_abort
 }
 
 ::chat::Chat c1 -volatile -encoder noencode -chat_id $room_id
Index: openacs-4/packages/chat/www/message-delete-2.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/message-delete-2.tcl,v
diff -u -r1.7.6.1 -r1.7.6.2
--- openacs-4/packages/chat/www/message-delete-2.tcl	20 Jun 2016 08:40:23 -0000	1.7.6.1
+++ openacs-4/packages/chat/www/message-delete-2.tcl	9 Jun 2017 17:47:19 -0000	1.7.6.2
@@ -13,8 +13,9 @@
 
 if { [catch {chat_room_message_delete $room_id} errmsg] } {
     ad_return_complaint 1 "[_ chat.Delete_messages_failed]: $errmsg"
+    ad_script_abort
 }
 
 ::chat::Chat flush_messages -chat_id $room_id
 
-ad_returnredirect .
\ No newline at end of file
+ad_returnredirect .
Index: openacs-4/packages/chat/www/room-delete-2.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/room-delete-2.tcl,v
diff -u -r1.5.6.1 -r1.5.6.2
--- openacs-4/packages/chat/www/room-delete-2.tcl	20 Jun 2016 08:40:23 -0000	1.5.6.1
+++ openacs-4/packages/chat/www/room-delete-2.tcl	9 Jun 2017 17:47:19 -0000	1.5.6.2
@@ -13,6 +13,7 @@
 
 if { [catch {chat_room_delete $room_id} errmsg] } {
     ad_return_complaint 1 "[_ chat.Delete_room_failed]: $errmsg"
+    ad_script_abort
 }
 
 ad_returnredirect . 
Index: openacs-4/packages/chat/www/transcript-delete-2.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/transcript-delete-2.tcl,v
diff -u -r1.3.12.1 -r1.3.12.2
--- openacs-4/packages/chat/www/transcript-delete-2.tcl	20 Jun 2016 08:40:23 -0000	1.3.12.1
+++ openacs-4/packages/chat/www/transcript-delete-2.tcl	9 Jun 2017 17:47:19 -0000	1.3.12.2
@@ -13,6 +13,7 @@
 
 if { [catch {chat_transcript_delete $transcript_id} errmsg] } {
     ad_return_complaint 1 "[_ chat.Delete_transcript_failed]: $errmsg"
+    ad_script_abort
 }
 
 ad_returnredirect "room?room_id=$room_id"
Index: openacs-4/packages/chat/www/transcript-edit.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/transcript-edit.tcl,v
diff -u -r1.6.6.1 -r1.6.6.2
--- openacs-4/packages/chat/www/transcript-edit.tcl	20 Jun 2016 08:40:23 -0000	1.6.6.1
+++ openacs-4/packages/chat/www/transcript-edit.tcl	9 Jun 2017 17:47:19 -0000	1.6.6.2
@@ -46,6 +46,7 @@
 } -on_submit {
     if { [catch {chat_transcript_edit $transcript_id $pretty_name $description $contents} errmsg] } {
         ad_return_complaint 1 "[_ chat.Could_not_update_transcript]: $errmsg"
+        ad_script_abort
     }
     ad_returnredirect "chat-transcript?transcript_id=$transcript_id&room_id=$room_id"    
 }