TPac: avoid mkurl param stripping for all defined url params

Instead of checking truthiness, checked definedness.

Signed-off-by: Bill Erickson <berick@esilibrary.com>

diff --git a/Open-ILS/src/templates/opac/parts/header.tt2 b/Open-ILS/src/templates/opac/parts/header.tt2
index 5db8139..d67a1d3 100644 (file)
--- a/Open-ILS/src/templates/opac/parts/header.tt2
+++ b/Open-ILS/src/templates/opac/parts/header.tt2
@@ -59,7 +59,7 @@
             IF val == ''; cgi.delete(p); END;
 
             # Delete POST vars unless we asked for them
-            UNLESS CGI.url_param(p) OR params.defined(p);
+            UNLESS CGI.url_param(p).defined OR params.defined(p);
                 cgi.delete(p);
             END;
         END;