Enqueuing script Mailpoet 3 fix

As already mentioned in this topic, Mailpoet 3 causes a javascript error in wordpress themes that include jquery in the footer.

You should edit the Widget.php file (located in lib / config) to declare script dependencies (jQuery in this case).

line 105 should be as follows:

 wp_enqueue_script(
      'mailpoet_public',
      Env::$assets_url . '/js/' . $this->renderer->getJsAsset('public.js'),
      array('jquery'), // add dependencies
      Env::$version,
      true
    );