title: request.auth.session.set(user_info) not working HapiJS
body: <p>This is my strategy, which is defined on a server.register(). I'm basing my work off a tutorial and it is literally copied from it but it doesn't work.</p>
  
  <pre><code>    server.auth.strategy('standard', 'cookie', {
          password: 'somecrazycookiesecretthatcantbeguesseswouldgohere', // cookie secret
          cookie: 'app-cookie', // Cookie name
          isSecure: false, // required for non-https applications
          redirectTo: '/login',
          ttl: 24 * 60 * 60 * 1000 // Set session to 1 day
      });
  
      server.auth.default({
          strategy: 'standard',
          mode: 'required',
          scope: ['admin']
      });
  </code></pre>
  
  <p>This is my login route where the error occurs:</p>
  
  <pre><code>server.route({
      method: 'POST',
      path: '/login',
      config: {
          auth: false,
          validate: {
              payload: {
                  email: Joi.string().email().required(),
                  password: Joi.string().min(2).max(200).required()
              }
          },
          handler: function (request, reply) {
  
              getValidatedUser(request.payload.email, request.payload.password)
                      .then(function (user) {
  
                          if (user) {
                              //ERROR OCCURS HERE: IT SAYS SESSION IS UNDEFINED
                              request.auth.session.set(user);
                              return reply('Login Successful!');
                          } else {
                              return reply(Boom.unauthorized('Bad email or password'));
                          }
  
                      });
  //                        .catch(function (err) {
  //                            return reply(Boom.badImplementation());
  //                        });
  
          }
      }
  });
  </code></pre>
  
  <p>I've tried so many things but this part is crucial for this work and I can't find anyone with the same problem. Help please!</p>