HTML won't be rendered using Tooltip

My GridView is coded like this:





<?php


use yii\helpers\Html;

use common\wsl_components\AdminLteAsset;


$js = <<<script

$(function () {

   $('body').tooltip({

    selector: '[data-toggle="tooltip"]',

        html:true

    });

});

SCRIPT;

// Register tooltip/popover initialization javascript

$this->registerJs($js);

AdminLteAsset::register($this);

$this->beginPage()

?>

<!DOCTYPE html>

<html lang="<?= Yii::$app->language ?>">

    <head>

        <meta charset="<?= Yii::$app->charset ?>"/>

        <meta name="viewport" content="width=device-width, initial-scale=1">

        <?= Html::csrfMetaTags() ?>

        <title><?= Html::encode($this->title) ?></title>

        <?php $this->head(); ?>

    </head>

    <body class="hold-transition skin-blue sidebar-mini sidebar-collapse">

        <?php $this->beginBody(); ?>

        <div class="wrapper">

            <?=

            $this->render(

                    'header.php'

            );

            ?>

            <?=

            $this->render(

                    'left.php'

            );

            ?>

            <?=

            $this->render(

                    'content.php', ['content' => $content]

            );

            ?>

        </div>


        <?php $this->endBody(); ?>

    </body>

</html>

<?php $this->endPage(); ?>



My GridView is coded like this:





.

.

[

    'attribute' => $dummy ,

    'label' => Yii::t ( 'app' , 'Charakterisierung' ) ,

    'format' => 'html' ,

    'value' => function($model) {

        if ( !empty ( $model->person->personentypDominant->typ_name ))  {

            $tag = Html::tag ( 'span' , 'Tooltip-Touch Me!' , [

                   // html-tags won't be rendered in title

                   'title' => $model->person->personentypDominant->typ_empfehlung ,

                   'data-placement' => 'left' ,

                   'data-toggle'=>'tooltip',

                   'style' => 'white-space:pre;border:1px solid red;'

            ] );

            return $tag . "<br>" . $model->person->personentypDominant->typ_verhaltensmerkmal_im_team_1 . "," . $model->person->personentypDominant->typ_verhaltensmerkmal_bei_stress_3 . "," . $model->person->personentypDominant->typ_verhaltensmerkmal_am_arbeitsplatz_4;

        }

    }

],

.

.



Nevertheless, HTML-Tags in Tooltip won’t be rendered. They appear, as they are in database, for instance like this:

Verhaltensempfehlung:<br><ul><li>

Kompetenz und Selbstbewusstsein zeigen,</ul></li>

I don’t know why, but upper tags won’t be interpreted. They are in Tooltip hardcoded. Any ideas, what I do wrong?