--- loncom/lonenc.pm	2004/11/14 07:54:41	1.6
+++ loncom/lonenc.pm	2004/11/16 15:26:36	1.7
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # URL translation for encrypted filenames
 #
-# $Id: lonenc.pm,v 1.6 2004/11/14 07:54:41 albertel Exp $
+# $Id: lonenc.pm,v 1.7 2004/11/16 15:26:36 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -112,7 +112,12 @@ sub check_encrypt {
 
 sub check_decrypt {
     my ($str)=@_;
-    if ($$str=~m|^/enc/|) { $$str=&Apache::lonenc::unencrypted($$str); }
+    if (ref($str)) {
+	if ($$str=~m|^/enc/|) { $$str=&Apache::lonenc::unencrypted($$str); }
+	return;
+    }
+    if ($str=~m|^/enc/|) { return &Apache::lonenc::unencrypted($str); }
+    return $str;
 }
 
 1;