Capybara Webkit save and open page but with render

render_the_page_steps.rb

Then /^render the page$/ do
  if Capybara.current_driver == Capybara.javascript_driver
    file_name = "capybara-webkit-#{Time.new.strftime("%Y%m%d%H%M%S")}#{rand(10**10)}.png"
    name = File.join(*[Capybara.save_and_open_page_path, file_name].compact)
    page.driver.render name
    begin
      require "launchy" # could raise LoadError
      raise LoadError unless Launchy::Version::MAJOR >= 2
      Launchy.open(name)
    rescue LoadError
      puts "Sorry, you need to install launchy >=2.0.0 (`gem install launchy`) and " <<
            "make sure it's available to open images taken with `render the page`."
    end
  else
    puts "MUST BE A JAVASCRIPT TEST TO RENDER THE PAGE"
  end
end