Windows: `make up` works, but preview fails

[ignaciogros]

make up works, but when I open Nextcloud and upload an .elpx file and click on its title, I see this message:

The "Edit" button opens the editor, which works perfectly.

Could you please take a look at that?

Thanks.

[erseco]

Hi @ignaciogros — could you give it another try? I made several changes on main since you reported this (notably PR #14 / #17), and on my side the preview opens correctly:

One thing worth trying first: open Nextcloud in a private/incognito window. The viewer registers a Service Worker scoped to /apps/exelearning/, and if you've previously run other Nextcloud apps on http://localhost:8080 (or any other dev stack on the same port), the browser may still be serving a stale SW from cache and that surfaces as the error you saw. An incognito window bypasses the cached SW entirely and is the quickest way to rule that out.

If it still fails in incognito after a fresh make down && make up, please paste the browser console output — the SW logs the package URL it's trying to fetch and that will pin down whether it's a routing issue or a permissions one.

Thanks!