Set window size for Capybara/Selenium/chromedriver

register_chrome_with_window_size.rb

# This works best in 2019 forward because its basically the code from the gem itself with some tweaks added:
# https://github.com/teamcapybara/capybara/blob/master/lib/capybara/registrations/drivers.rb

# The additional option/flags work for me but you probebly want to checkout what you would need here first:
# https://peter.sh/experiments/chromium-command-line-switches/

Capybara.register_driver :selenium_chrome_headless do |app|
  # Capybara::Selenium::Driver.load_selenium
  browser_options = ::Selenium::WebDriver::Chrome::Options.new.tap do |opts|
    opts.args << '--window-size=1920,1080'
    opts.args << '--force-device-scale-factor=0.95'
    opts.args << '--headless'
    opts.args << '--disable-gpu'
    opts.args << '--disable-site-isolation-trials'
    opts.args << '--no-sandbox'
  end
  Capybara::Selenium::Driver.new(app, browser: :chrome, options: browser_options)
end

Capybara.javascript_driver = :selenium_chrome_headless