Hi, I have the exact same issue. I also put the cookie with

Plug.Conn.put_resp_cookie(“guardian_default_token”,token,http_only: true)

But I cannot validate the cookie with this Auth pipeline

defmodule Api.Guardian.AuthPipeline do
use Guardian.Plug.Pipeline, otp_app: :Api,
module: Api.Guardian,
error_handler: Api.AuthErrorHandler
plug :fetch_session
plug Guardian.Plug.VerifySession, key: “guardian_default_token”
plug Guardian.Plug.VerifyCookie
plug Guardian.Plug.EnsureAuthenticated
plug Guardian.Plug.LoadResource
end

Could you possibly provide me some information about the auth pipeline you used?

Thanks