fix

@@ -28,7 +28,11 @@ exports.index = (req, res, next) => {
 
     if (req.originalUrl && req.originalUrl.indexOf('.html') < 0 &&
         !_.isEmpty(req.query)) {
-        return res.redirect(301, helpers.urlFormat(handleFilterUrl('/list', req.query)));
+        let rUrl = handleFilterUrl('/list', req.query);
+
+        if (rUrl !== req.originalUrl) {
+            return res.redirect(301, helpers.urlFormat(rUrl));
+        }
     }
 
     try {