if Capybara::Screenshot.autosave_on_failure
        Capybara.using_session(Capybara::Screenshot.final_session_name) do
          filename_prefix = Capybara::Screenshot.filename_prefix_for(:testunit, fault)

          saver = Capybara::Screenshot.new_saver(Capybara, Capybara.page, true, filename_prefix)