KeystoneJs - Add a new route, hooks are not supported

I am trying to add a new route to keystonejs, because my intention is to have two contextroots using recaptcha for spamming protection.

What I did to add the route:

In my keystone.js file there is a line: keystone.set('routes', require('./routes'));

so I added:

keystone.set('protectedroutes', require('./protectedroutes'));

because the name of my folder is "protectedroutes".

My part in the middleware.js:

exports.initContributes = function (req, res, next) {
  if (!(req.body['g-recaptcha-response'] && req.body['g-recaptcha-response'].length)) {
        return res.json({
            "responseCode": 1,
            "responseDesc": "Please select captcha"
        });
    }

    if (validateRecaptcha(req.body['g-recaptcha-response'], req.connection.remoteAddress)) {
         next();
    } else {
             return res.json({
                    "responseCode": 1,
                    "responseDesc": "Failed captcha verification"
            });
    }
};

My whole index.js:

var keystone = require('keystone');
var middleware = require('./middleware');
var importRoutes = keystone.importer(__dirname),
    importProtectedRoutes =  keystone.importer('./protectedroutes/');

// Common Middleware
keystone.pre('routes', middleware.initLocals);
keystone.pre('protectedroutes', middleware.initContributes);
keystone.pre('render', middleware.flashMessages);

// Import Route Controllers
var routes = {
    views: importRoutes('./views')
},
protectedRoutes  = {
    views: importRoutes('./views')
};

// Setup Route Bindings
exports = module.exports = function (app) {
    // Views
    app.get('/', routes.views.index);
    app.get('/blog/:category?', routes.views.blog);
    app.get('/blog/post/:post', routes.views.post);

    app.get('/lockoverview/:category?', routes.views.lockoverview);
    app.get('/systemoverview/:category?', routes.views.systemoverview);
    app.get('/tooloverview/:category?', routes.views.tooloverview);


    app.get('/lockoverview/lock/:lock', routes.views.lock);
    app.get('/systemoverview/system/:system', routes.views.system);
    app.get('/tooloverview/tool/:tool', routes.views.tool);

    app.get('/gallery', routes.views.gallery);
    app.all('/contact', routes.views.contact);
    app.all('/contributelock', protectedRoutes.views.contributelock);
    app.all('/contributetool', protectedRoutes.views.contributetool);

    // NOTE: To protect a route so that only admins can see it, use the requireUser middleware:
    // app.get('/protected', middleware.requireUser, routes.views.protected);

};

Error: if(cache.opts.strict) throw new Error('Hooks for ' + hook + ' are not supported.'); Error: Hooks for pre: protectedroutes are not supported.

It is caused by this line:

keystone.pre('protectedroutes', middleware.initContributes);

What am I doing wrong?

via SiriSch