# File lib/faraday/adapter/em_http_ssl_patch.rb, line 45
  def certificate_store
    @certificate_store ||= begin
      store = OpenSSL::X509::Store.new
      store.set_default_paths
      ca_file = parent.connopts.tls[:cert_chain_file]
      store.add_file(ca_file) if ca_file
      store
    end
  end