Index: openacs-4/packages/acs-tcl/tcl/test/http-client-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/test/http-client-procs.tcl,v
diff -u -r1.1.2.4 -r1.1.2.5
--- openacs-4/packages/acs-tcl/tcl/test/http-client-procs.tcl	3 Jun 2019 08:46:17 -0000	1.1.2.4
+++ openacs-4/packages/acs-tcl/tcl/test/http-client-procs.tcl	3 Jun 2019 09:12:16 -0000	1.1.2.5
@@ -103,7 +103,10 @@
                     # HTTP tool util::http is wrapping, response would
                     # not be automatically translated to the system
                     # encoding.
-                    if {[info exists tmpfile_app_json] && [info exists tmpfile_iso8859_2]} {
+                    if {[info exists tmpfile_app_json] &&
+                        [info exists tmpfile_iso8859_2] &&
+                        [file exists $tmpfile_app_json] &&
+                        [file exists $tmpfile_iso8859_2]} {
                         set rfd [open $tmpfile_app_json r]
                         set app_json_text [read $rfd]
                         close $rfd