ldc-legaulois/app/Http/Middleware/SessionPreviousUrl.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Session;

class SessionPreviousUrl
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  \Closure                 $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        if (!in_array($request->route()->getName(), ['form-connexion', 'connexion', 'front.frame'])) {
            Session::put('previousurl', $request->url());
        }
        return $next($request);
    }
}