Index: openacs-4/packages/caldav/tcl/caldav-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/caldav/tcl/Attic/caldav-procs.tcl,v
diff -u -r1.1.2.4 -r1.1.2.5
--- openacs-4/packages/caldav/tcl/caldav-procs.tcl	27 Nov 2022 18:21:11 -0000	1.1.2.4
+++ openacs-4/packages/caldav/tcl/caldav-procs.tcl	4 Dec 2022 13:08:26 -0000	1.1.2.5
@@ -444,7 +444,9 @@
             }
             default {
                 $doc delete
-                return [:request_error "invalid uri '${:uri}'"]
+                ad_log warning "caldav: PROFIND called for unknown resource: '${:uri}'"
+                :response 404 text/plain "no such resource: '${:uri}'"
+                #return [:request_error "invalid URI '${:uri}'"]
             }
         }
         # create response