Why doesn't urlManager work correctly with modules?

Question

Yii

There is a module: panel

There is such a link: And these rules:
Url::to(['panel/order', 'slug' => $service->code])

'panel/order/<slug:\w+>/' => 'panel/order',
'panel/order/<slug:\w+>' => 'panel/order',

When following the link, manually entering the address:
site.ru/panel/order/slug - все ОК работает.

And url::to generates
http://site.ru/panel/panel/order?slug=queue-qwe

this for me: OrderController has this path: Everything is ok in the action too:
namespace app\modules\panel\controllers;

public function actionIndex($slug)
    {
        $service_model = Services::find()->where(['code' => $slug])->one();
        return $this->render('index', compact('service_model'));
    }

What could be the problem ? Why does it not generate a normal link
If you write like this?

<?= Url::to(['/../panel/order', 'slug' => $service->code]) ?>

It generates a normal link, without the second word panel.
But not the CNC, it turns out such a link:
site.ru/panel/order?slug=queue-qwe
and it should be
site.ru/panel/order/queue-qwe

Answer 1

The hyphen is not specified in the regular expression

'panel/order/<slug:[\w-]+>/' => 'panel/order',
    'panel/order/<slug:[\w-]+>' => 'panel/order',

And the module is accessed like this:

Url::to(['/panel/order', 'slug' => $service->code])