magento2 – Magento 2 – Custom Widget Wysiwyg Editor allow html tags

I try to add a wysiwyg editor to my custom widget.

I added the field to my widget.xml

            <parameter name="content" xsi:type="block" required="false" visible="true" sort_order="60">
                <label>Content</label>
                <block class="TestCustomBlockWidgetEditor" />
            </parameter>

and this is my Editor.php :

<?php

namespace TestCustomBlockWidget;

use MagentoFrameworkViewElementTemplate;
use MagentoWidgetBlockBlockInterface;

class Editor extends Template implements BlockInterface
{
    /**
     * @var MagentoCmsModelWysiwygConfig
     */
    protected $_wysiwygConfig;

    /**
     * @var Factory
     */
    protected $_factoryElement;

    /**
     * @param Factory $factoryElement
     * @param CollectionFactory $factoryCollection
     * @param array $data
     */
    public function __construct(
        MagentoBackendBlockTemplateContext $context,
        MagentoFrameworkDataFormElementFactory $factoryElement,
        MagentoCmsModelWysiwygConfig $wysiwygConfig,
        $data = ()
    ) {
        $this->_factoryElement = $factoryElement;
        $this->_wysiwygConfig = $wysiwygConfig;
        parent::__construct($context, $data);
    }

    /**
     * Prepare chooser element HTML
     *
     * @param MagentoFrameworkDataFormElementAbstractElement $element Form Element
     * @return MagentoFrameworkDataFormElementAbstractElement
     */
    public function prepareElementHtml(MagentoFrameworkDataFormElementAbstractElement $element)
    {
        $editor = $this->_factoryElement->create('editor', ('data' => $element->getData()))
            ->setLabel('')
            ->setForm($element->getForm())
            ->setWysiwyg(true)
            ->setConfig($this->_wysiwygConfig->getConfig(('add_variables' => false, 'add_widgets' => false)));

        if ($element->getRequired()) {
            $editor->addClass('required-entry');
        }

        $element->setData(
            'after_element_html', $this->_getAfterElementHtml() . $editor->getElementHtml()
        );

        return $element;
    }

    /**
     * @return string
     */
    protected function _getAfterElementHtml()
    {
        $html = <<<HTML
            <style>
                .admin__field-control.control .control-value {
                    display: none !important;
                }
            </style>
        HTML;

        return $html;
    }

}

If i try to get the Editor value to my frontend like this :


<?= $block->getData('content');?> 

or like this :

 <?= $block->escapeHtml($block->getData('content')) ?>

enter image description here

it shows the HTML Tags in Frontend.
How can i “allow” html tags for my wysiwyg editor?