[RoR] Run ajax cucumber features remotely

spec_helper.rb

require "selenium-webdriver"

profile = Selenium::WebDriver::Firefox::Profile.new
profile["network.http.use-cache"] = false

Capybara.register_driver :firefox_host do |app|
Capybara::Selenium::Driver.new(app,
    :browser => :remote,
    :url => 'http://10.0.2.2:4444/wd/hub',
    :desired_capabilities =>   Selenium::WebDriver::Remote::Capabilities.firefox(:firefox_profile => profile)
)
end

Capybara.server_port = 9300
Capybara.app_host = 'http://localhost:9300'
Capybara.javascript_driver = :firefox_host

steps.md

Download and run selenium server on host.

java -jar selenium-server-standalone.jar

Modify spec_helper.rb

see spec_helper.rb

Modify Vagrantfile to forward port (if using Vagrant).

config.vm.forward_port 9300, 9300