- triggers on response statuses >=500 (handled in \App\Exception\Handler.php already)
- modify the existing redirect(route('home') in Handler.php to something more generic like back()
- maybe move the shared error message box including styles into its own vue component (and replace in Home.vue)
- test e2e behaviour with browser tests
See task T289344 - ~~Home page~~ - Error handling on server side for reference