Index: trunk/ippScripts/scripts/warp_overlap.pl
===================================================================
--- trunk/ippScripts/scripts/warp_overlap.pl	(revision 14692)
+++ trunk/ippScripts/scripts/warp_overlap.pl	(revision 15644)
@@ -29,4 +29,5 @@
 		       metadataLookupBool
 		       caturi
+		       file_scheme
 		       );
 my $ipprc = PS::IPP::Config->new(); # IPP configuration
@@ -114,5 +115,5 @@
     foreach my $tess_id ( keys %$tessellations ) {
 	### Because DVO doesn't use psModules, it doesn't understand Nebulous --- check
-	my ($scheme) = $$tessellations{$tess_id} =~ m|^(\S+):|; # The scheme, e.g., file://, path://
+	my $scheme = file_scheme($$tessellations{$tess_id}); # The scheme, e.g., file, path, neb
 	if (defined $scheme and lc($scheme) eq 'neb') {
 	    &my_die("Tessellation $tess_id refers to a Nebulous path: $$tessellations{$tess_id}", $warp_id, $PS_EXIT_CONFIG_ERROR);