call

# File actionpack/lib/action_dispatch/middleware/ssl.rb, line 20
    def call(env)
      request = Request.new(env)

      if request.ssl?
        status, headers, body = @app.call(env)
        headers = hsts_headers.merge(headers)
        flag_cookies_as_secure!(headers)
        [status, headers, body]
      else
        redirect_to_https(request)
      end
    end