Index: openacs-4/packages/xotcl-core/tcl/50-protocol-handler-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-core/tcl/50-protocol-handler-procs.tcl,v
diff -u -N -r1.3 -r1.4
--- openacs-4/packages/xotcl-core/tcl/50-protocol-handler-procs.tcl	12 Apr 2010 11:59:11 -0000	1.3
+++ openacs-4/packages/xotcl-core/tcl/50-protocol-handler-procs.tcl	28 Sep 2011 12:27:14 -0000	1.4
@@ -61,6 +61,11 @@
   } {
     my instvar uri method urlv destination
     ad_conn -reset
+    # Make sure, there is no ::ad_conn(request); otherwise the
+    # developer support will add all its output to a single var, which
+    # can lead easily to running out of resources in busy sites. When
+    # unset, the developer support will create its own id.
+    catch {unset ::ad_conn(request)}
     set uri [ns_urldecode [ns_conn url]]
     set url_regexp "^[my url]"
     #my log "--conn_setup: uri '$uri' my url='[my url]' con='[ns_conn url]'"