env.rb

def create_remote_driver(browser, platform)
  if browser == :firefox
    capabilities = Selenium::WebDriver::Remote::Capabilities.firefox(
      platform: platform,
      marionette: false,
    )
  elsif browser == :chrome
    capabilities = Selenium::WebDriver::Remote::Capabilities.chrome(
      'chromeOptions' => chrome_switches,
      platform: platform,
      takes_screenshot: true,
    )
  else
    capabilities = Selenium::WebDriver::Remote::Capabilities.internet_explorer(
      platform: platform,
      javascript_enabled: true,
      enable_persistent_hover: true, # Constantly fire mouseOver events
    )
    capabilities['ie.ensureCleanSession'] = true # Wipe all history and cookies
  end

  Capybara.register_driver :selenium do |app|
    client = Selenium::WebDriver::Remote::Http::Default.new
    client.timeout = 120
    Capybara::Selenium::Driver.new(
      app,
      browser: :remote,
      url: ENV['hub_url'],
      desired_capabilities: capabilities,
      http_client: client,
    )
  end
end