title: hapi-auth-cookie not setting cookie
body: <p>For my node app im using the bell and hapi-auth-cookie plugins to use the Yahoo api. With the current code, I am able to authenticate with Yahoo and then am redirected to the homepage. However, request.auth seems to be empty once I get to the homepage. From what I can tell, I'm doing everything exactly as the example, yet I have no authentication once I get back to the homepage. Any help is appreciated! Here's what I've got:</p>
  
  <pre><code>var Path = require('path');
  var Hapi = require('hapi');
  var cookieSession = require('cookie-session');
  
  var serverOptions = {
    views: {
      engines: {
        html: require('handlebars')
      },
    path: Path.join(__dirname, './app/www/public/pages'),
    layoutPath: Path.join(__dirname, './app/www/public/pages')
    }
  };
  
  var server = new Hapi.Server(8003, serverOptions);
  
  server.pack.register([
    require('bell'),
    require('hapi-auth-cookie')
  ], function(err) {
    if (err) {
      throw err;
    }
  
    server.auth.strategy('yahoo', 'bell', {
      provider: 'yahoo',
      password: 'cookie_encryption_password',
      clientId:'2kj3kj2',
      clientSecret: '3kj2k3jl',
      isSecure: false     // Terrible idea but required if not using HTTPS
    });
  
    server.auth.strategy('session', 'cookie', {
      password: 'secret',
      cookie: 'sid-example',
      redirectTo: '/login',
      isSecure: false
    });
  
    server.route({
      method: ['GET', 'POST'], // Must handle both GET and POST
      path: '/login',          // The callback endpoint registered with the provider
      config: {
        auth: 'yahoo',
        handler: function (request, reply) {
  
          var creds = request.auth.credentials;
          request.auth.session.clear();
          request.auth.session.set(creds);
          return reply.redirect('/');
        }
      }
    });
  
    server.route({
      method: 'GET',
      path: '/',
      handler: function (request, reply) {
        reply.view('index', { title: 'hello world' });
      }
    });
  
    server.start();
  });
  </code></pre>