leaked 1 from www_view shows up in Asset output

docs/changelog/6.x.x.txt

@@ -62,6 +62,7 @@
  - fix [ 1443378 ] 6.99 Commerce system needs to be sessionized
  - fix [ 1442942 ] 6.99: listLDAPLinks broken
  - fix [ 1430276 ] 6.9: Can't kill active sessions
+ - fix [ 1429389 ] 6.9: "1" appended to HTML
 
 6.8.8
  - fix [ 1437186 ] 6.8.7 deploy DataForm package does not copy fields

lib/WebGUI.pm

@@ -168,7 +168,7 @@ sub page {
 			$output = tryAssetMethod($session,$asset,"view") unless ($output || ($method eq "view"));
 		}
 	}
-	if ($output eq "") {
+	if (defined($output) and $output eq "") {
 		$session->http->setStatus("404","Page Not Found");
 		my $notFound = WebGUI::Asset->getNotFound($session);
 		if (defined $notFound) {

lib/WebGUI/Asset/File.pm

@@ -330,7 +330,7 @@ sub www_view {
 		return $self->getContainer->www_view;
 	}
 	$self->session->http->setRedirect($self->getFileUrl);
-	return "";
+	return undef;
 }
 
 

lib/WebGUI/Asset/Wobject.pm

@@ -602,6 +602,7 @@ sub www_view {
 	$self->session->output->print($head);
 	$self->session->output->print($self->view);
 	$self->session->output->print($foot);
+	return undef;
 }
 
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