I try to add this HTML (<span style='color:red'>*</span>)to the content of a field with type text.

enter image description here

But the html is getting stripped. How can I allow all secure html elements but disallow unsecure elements like script?


<field id="methodTitle" translate="label" type="text" sortOrder="5" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
    <label>Method title</label>
  • please share your code for more information
    – Msquare
    Oct 19, 2020 at 12:09
  • @Msquare, I added the code.
    – Black
    Oct 19, 2020 at 12:18

2 Answers 2



  <field id="methodTitle" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">
           <label>Method title</label>
           <comment><![CDATA[Method title comment]]></comment>

Block: test.php (Use your own class)


namespace <vendor>\<module>\Block;

use Magento\Framework\Escaper;

class Test extends \Magento\Config\Block\System\Config\Form\Field
     * @var \Magento\Framework\Escaper
    private $escaper;

    public function __construct(\Magento\Backend\Block\Template\Context $context, Escaper $escaper, array $data = [])
        parent::__construct($context, $data);
        $this->escaper = $escaper;

    protected function _getElementHtml(\Magento\Framework\Data\Form\Element\AbstractElement $element)
        if ($value = $element->getData('value')) {
             $element->setData($this->escaper->escapeHtml($value)) ;
        } else {
               $this->escaper->escapeHtml("<span style='color:red' >*</span> Pro Paket bis 31kg |Express")

        return parent::_getElementHtml($element);

NOTE: If you don't need hardcoded value then remove else condition.

Output: enter image description here Hope it helps :)

  • This is hardcoding the setting, thats not what I want. But I figured out that it already is allowing HTML completly. Look at my answer.
    – Black
    Oct 19, 2020 at 13:40
  • If you don't want hardcoded then remove else condition, then it works! Oct 19, 2020 at 13:41
  • Have you tested my solution? because I have tested it properly and then post for you, but you without tested my code just giving your review? Oct 19, 2020 at 13:44
  • Sorry; i think you are reacting to a deleted comment of me.
    – Black
    Oct 19, 2020 at 14:17
  • 1
    Thank for accepting the solution :) Oct 19, 2020 at 14:19

I figured out that HTML is already allowed. But there was a place in the template where the HTML is getting escaped, so I thought html is not allowed.

I am also rewriting the method getStoreConfig in the file where I am loading the settings from the system.xml to make it whitelist the tags <div><br><strong><span><b><p><h1><h2><h3><h4><h5>

protected function getStoreConfig($key, $decrypt = false)
    if ($decrypt) { $this->_decrypt($data); }
    $data = strip_tags(
                $this->scopeConfig->getValue($key, \Magento\Store\Model\ScopeInterface::SCOPE_STORE),

    return $data;

private function _decrypt(&$data)
    $encryptor = $this->_encryptorFactory->create();
    return $encryptor->decrypt($data);

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