       {:ok, "go on"}
     else
       headers = [
-        "User-Agent":
-          "Mozilla/5.0 (compatible; Panoptikum; +https://panoptikum.io/)"
+        "User-Agent": "Mozilla/5.0 (compatible; Panoptikum; +https://panoptikum.io/)"
       ]
 
       options = [recv_timeout: 15_000, timeout: 15_000, hackney: [:insecure]]

  def check_headers(_, feed, nil, nil) do
    Feed.changeset(feed, %{no_headers_available: true})
    |> Repo.update()
    {:ok, "go on"}
  end


        {:ok, %HTTPoison.Response{headers: headers}} ->
          headermap = Enum.into(headers, %{})
          check_headers(podcast, feed, headermap["ETag"], headermap["Last-Modified"])

        {:error, _error} ->
          {:ok, "go on"}
      end
