When there is ongoing Ajax Request during Capybara test session. You can make capybara wait till all the Ajax Requests finish first. - This Code chunk is actually provided by ThoughtBot - https://robots.thoughtbot.com/automatically-wait-for-ajax-with-capybara

wait_for_ajax.rb

# spec/support/wait_for_ajax.rb
# There is inbuild `wait_for_ajax` method in selinium WebDriver library
# This is for Capybara Webkit only
# #
module WaitForAjax
  def wait_for_ajax
    Timeout.timeout(Capybara.default_max_wait_time) do
      loop until finished_all_ajax_requests?
    end
  end

  def finished_all_ajax_requests?
    page.evaluate_script('jQuery.active').zero?
  end
end

RSpec.configure do |config|
  config.include WaitForAjax, type: :feature
end