URL::enforceTrailingSlashes causes 404 on home page of site with url prefix

[Balletie]

Bug description

Tried setting up a home page on a multisite-enabled project (in trial mode on my local machine), but got 404 constantly. Eventually found out that multi-site is not needed to reproduce, but the site url needs a path prefix like /en/ or similar.

How to reproduce

Minimal example, multi-site is not needed.

Start a new site with statamic new, then go to site settings and changing the site url to e.g. /en/. Copying sites.yaml below:

default:
  name: '{{ config:app:name }}'
  url: /en/
  locale: '{{ config:app:locale }}'

home page at /en/ still works.

Then add to boot method in AppServiceProvider:

    public function boot(): void
    {
        URL::enforceTrailingSlashes();
    }

and it stops working.

Logs

Environment

Environment
Application Name: Statamic
Laravel Version: 12.52.0
PHP Version: 8.4.16
Composer Version: 2.8.8
Environment: local
Debug Mode: ENABLED
URL: trailing-slashes-bug.test
Maintenance Mode: OFF
Timezone: UTC
Locale: en

Cache
Config: NOT CACHED
Events: NOT CACHED
Routes: NOT CACHED
Views: CACHED

Drivers
Broadcasting: log
Cache: file
Database: sqlite
Logs: stack / single
Mail: log
Queue: sync
Session: file

Storage
public/storage: NOT LINKED

Statamic
Addons: 1
Sites: 1
Stache Watcher: Enabled (auto)
Static Caching: Disabled
Version: 6.3.2 Solo

Statamic Addons
statamic/ssg: 4.0.0

Installation

Fresh statamic/statamic site via CLI

Additional details

No response

[Balletie]

Just tried the fix in #14029 and can confirm that it resolved the issue for me