Pass the router module, like this:

<%= live_render(@conn, EnrolWeb.EnrollmentLive.Index, 
          session: %{
            "class_id" => @class.id
          },
          router: EnrolWeb.Router)  %>

I think that’s all there is to it.

Yeah, I think the router option is not going to work. You will have to mount it at the router (to use live navigation) or it has no effect. I will update the docs to no longer mention it. Thanks!

What triggers the warning in your case?

There are a few limitations for liveviews not mounted at the router level: no access to params in mount, you can’t do live navigation unless you pass the :router option but, even so, still limited to one liveview with router per page .etc