How to remove attributed parameter in (Html::a) Yii2?

Question

Yii

I can't figure out how to remove the parameter from the address bar (it's highlighted)
Here's my code:

<?= Html::a('Download', ['uploads/', $post->Invoice], ['class' => 'label label-primary']) ?>

$post = new Orders_list();
        if($post->load(Yii::$app->request->post()) && $post->validate()){
            $image = UploadedFile::getInstance($post, 'Invoice');
            $post->Invoice = md5($image->baseName).'.'.$image->extension;
            if($post->save()){
                $image->saveAs('uploads/'.$post->Invoice);
                Yii::$app->getSession()->setFlash('message', 'Post published successfull');
                return $this->redirect(['site/table']);
            }
            else{
                Yii::$app->getSession()->setFlash('message', 'Failed to post');
            }
        }
        return $this->render('add', ['post' => $post]);

Answer 1

?

<?= Html::a('Download', '/uploads/'. $post->Invoice, ['class' => 'label label-primary']) ?>