Correct urlencode ? for redirection from login when user isn t auth. c…

…ozy#215

server/middlewares/authentication.coffee

@@ -33,6 +33,6 @@ module.exports.isAuthenticated = (req, res, next) ->
         next()
     else
         url = "/login"
-        url += "?next=#{req.url}" unless req.url is '/'
+        url += "?next=#{req.url.replace "?", "%3F"}" unless req.url is '/'
         url += "&#{qs.stringify req.query}" if req.query.length
         res.redirect url