Action#headers returns empty?

config.ru

# Request: curl http://localhost:9292 -H "Content-type: application/json"
# Server log:
# [2014-08-23 22:28:17] INFO  WEBrick 1.3.1
# [2014-08-23 22:28:17] INFO  ruby 2.1.2 (2014-05-08) [x86_64-darwin13.0]
# [2014-08-23 22:28:17] INFO  WEBrick::HTTPServer#start: pid=59002 port=9292
# testing #headers.empty?
# true
# 127.0.0.1 - - [23/Aug/2014 22:28:18] "GET  HTTP/1.1" 200 - 0.0065

require 'lotus'

module OneFile
  class Application < Lotus::Application
    configure do
      routes do
        get '/', to: 'home#index'
      end
    end

    load!
  end

  module Controllers
    module Home
      include Lotus::Controller

      action 'Index' do
        def call(params)
          puts "testing #headers.empty?"
          puts headers.empty?
        end
      end
    end
  end

  module Views
    module Home
      class Index
        include Lotus::View

        def render
          'Hello'
        end
      end
    end
  end
end

run OneFile::Application.new

Gemfile.lock

PATH
  remote: ~/git/lotus
  specs:
    lotusrb (0.1.0)
      lotus-controller (~> 0.2)
      lotus-router (~> 0.1, >= 0.1.1)
      lotus-utils (~> 0.2)
      lotus-view (~> 0.2)
      thor (= 0.19.1)

GEM
  remote: https://rubygems.org/
  specs:
    http_router (0.11.1)
      rack (>= 1.0.0)
      url_mount (~> 0.2.1)
    lotus-controller (0.2.0)
      lotus-utils (~> 0.2)
      rack (~> 1.5)
    lotus-router (0.1.1)
      http_router (~> 0)
      lotus-utils (~> 0)
    lotus-utils (0.2.0)
    lotus-view (0.2.0)
      lotus-utils (~> 0.2)
      tilt (~> 2.0, >= 2.0.1)
    rack (1.5.2)
    thor (0.19.1)
    tilt (2.0.1)
    url_mount (0.2.1)
      rack

PLATFORMS
  ruby

DEPENDENCIES
  lotusrb!