Extend for Commerce products

Problem/Motivation

The module does not work with Commerce products.

Proposed resolution

Add support for Commerce products.

I've fixed locally added the following extra code:

      if ($product = $request->attributes->get('commerce_product')) {
        if (!$product->isPublished()) {
          $event->setThrowable(new NotFoundHttpException());
        }
      }

Would you like a simple patch with just this code, or do you prefere to implement using a sub-module or with a setting to enable this feature. Let me know so I can provide an appropriate patch.

Thank you.