Header reders even if it empty and without close button

[k-timoshenko]

Steps to reproduce the issue

1. Write code like this:

<?= PopoverX::widget([
    'header'       => NULL,
    'closeButton'  => NULL,
    'content'      => 'lorem ipsum',
    'toggleButton' => [
        'label' => $user->getFollowersCount(),
        'class' => 'btn btn-primary',
    ],
]); ?>

Expected behavior and actual behavior

When I follow those steps, I see...
Popover rendered with empty header line.

I was expecting...
Header does not rendered.

Libraries

• yii2-popover-x version: v1.3.4

Solution

PopoverX::renderCloseButton method returns empty line if close button no rendred, but PopoverX::renderHeader method checks if close button is null.