ladill-mini/app/Http/Middleware/RedirectLegacyQrToLadillLink.php

<?php

namespace App\Http\Middleware;

use App\Support\LadillLink;
use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;

class RedirectLegacyQrToLadillLink
{
    public function handle(Request $request, Closure $next): Response
    {
        if (! preg_match('#^q/[a-z0-9]#i', ltrim($request->path(), '/'))) {
            return $next($request);
        }

        if (LadillLink::isInternalRequest($request)) {
            return $next($request);
        }

        // Same-origin AJAX from Mini-hosted payment pages (e.g. mini.ladill.com)
        // must hit local /q/{code}/pay — redirecting to ladl.link breaks CORS and
        // the checkout sheet never opens.
        if ($request->ajax() || $request->expectsJson() || $request->wantsJson()) {
            return $next($request);
        }

        return LadillLink::legacyRedirect($request);
    }
}