class Capybara::Cuprite::Browser::Page

def command(*args)
  id = nil
  @mutex.synchronize do
    id = @client.command(*args)
    stop_at = Time.now.to_f + @wait
    while @wait > 0 && (remain = stop_at - Time.now.to_f) > 0
      @resource.wait(@mutex, remain)
    end
    @wait = 0
  end
  response = @client.wait(id: id)
end