Enable CSRF middleware, hopefully this time it works

src/Vervis/Foundation.hs

@@ -108,7 +108,7 @@ instance Yesod App where
     --   b) Validates that incoming write requests include that token in either a header or POST parameter.
     -- For details, see the CSRF documentation in the Yesod.Core.Handler module of the yesod-core package.
     yesodMiddleware =
-        -- defaultCsrfMiddleware .
+        defaultCsrfMiddleware .
         -- sslOnlyMiddleware 120 .
         defaultYesodMiddleware