class Capybara::RackTest::Node

def displayed_text(check_ancestor: true)
  if !string_node.visible?(check_ancestor)
    ''
  elsif native.text?
    native.text
          .gsub(/[\u200b\u200e\u200f]/, '')
          .gsub(/[\ \n\f\t\v\u2028\u2029]+/, ' ')
  elsif native.element?
    text = native.children.map do |child|
      Capybara::RackTest::Node.new(driver, child).displayed_text(check_ancestor: false)
    end.join || ''
    text = "\n#{text}\n" if BLOCK_ELEMENTS.include?(tag_name)
    text
  else
    ''
  end
end