I am deploying an Elixir application behind an Nginx proxy (multiple Elixir applications actually) and am having some issues specific (I think) to live_redirect.

I have

1. changed the url in my config.exs by adding the path as such: url: [host: "localhost", path: "/campaign"]
2. prepended the base-url to the app.js as such: let liveSocket = new LiveSocket("/campaign/live", Socket, {params: {_csrf_token: csrfToken}})

I have another application that uses LiveView that works fine, but this campaign application, which another developer has developed, manifests the problems.

In the backend I see:

[error] an exception was raised:
    ** (ArgumentError) cannot invoke handle_params nor live_redirect/live_link to "https://[ELIDED]/campaign/dashboard/nonode%40nohost" because it isn't defined in CampaignsLiveWeb.Router
        (phoenix_live_view 0.12.1) lib/phoenix_live_view/utils.ex:209: Phoenix.LiveView.Utils.live_link_info!/3
        (phoenix_live_view 0.12.1) lib/phoenix_live_view/channel.ex:600: Phoenix.LiveView.Channel.verified_mount/4
        (phoenix_live_view 0.12.1) lib/phoenix_live_view/channel.ex:34: Phoenix.LiveView.Channel.handle_info/2

I am wondering if anyone has seen anything similar to this before, and can give me a hint as to where I might explore?

Again, I have successfully deployed another LiveView application using the above 2 points, so I know that nginx is properly passing/upgrading the websockets. I feel that this is related to the issue here, although in my case, I know what the top-level URL is going to be and am not using dynamic re-writing.

Thanks,
Daniel