Why doesn't Yii2 paired with jQuery (aJax) work?

Question

JavaScript

AJax request not working, what could be the reason?

We connect in views:

$script = <<< JS
$.ajax({
  url: 'mysite.ru/site/message',
  success: function(data) {
    alert(data);
  }
});
JS;
$this->registerJs($script, yii\web\View::POS_READY);

In controller:

public function actionMessage()
{
        echo 'Проба';
}

jQuery is included built into Yii2.

Answer 1

Trace this code (and the jQuery include code) in the resulting html code of the page to begin with.
Well, look in Firebug or something - is Ajax knocking here - mysite.ru/site/message

Answer 2

does the url line bother you?
I think your script is trying to get data from domen.com/mysite.ru/site/message