Index: /branches/version-2/data/class/pages/entry/LC_Page_Entry.php
===================================================================
--- /branches/version-2/data/class/pages/entry/LC_Page_Entry.php	(revision 17021)
+++ /branches/version-2/data/class/pages/entry/LC_Page_Entry.php	(revision 17151)
@@ -75,5 +75,5 @@
 
         // 規約ページからの遷移でなければエラー画面へ遷移する
-        if (empty($_POST) && basename($_SERVER['HTTP_REFERER']) != 'kiyaku.php') {
+        if (empty($_POST) && !preg_match('/kiyaku.php/', basename($_SERVER['HTTP_REFERER']))) {
             SC_Utils_Ex::sfDispSiteError(PAGE_ERROR, "", true);
         }