Expires window报hbs问题

@@ -45,7 +45,7 @@ module.exports = () => {
                 res.set({
                     'Cache-Control': 'no-cache',
                     Pragma: 'no-cache',
-                    Expires: new Date(1900, 0, 1, 0, 0, 0, 0)
+                    Expires: (new Date(1900, 0, 1, 0, 0, 0, 0)).toUTCString()
                 });
             }