2

I'm creating a module, where the user posts a HTML code on the backend and it will be rendered on the site page.

However, when I save the module content, the HTML disappear and just plain text is shown, and the HTML is ignored.

Before Saving:

before saving

After Saving:

After saving

I'm creating the field like this, in my component .xml file

<fields name="params">
    <fieldset name="basic">         
        <field name="html_code" type="textarea" rows="10" cols="30" />
    </fieldset>
</fields>
2

Try adding filter="raw" to your XML file:

<fields name="params">
    <fieldset name="basic">         
        <field name="html_code" type="textarea" rows="10" cols="30" filter="raw" />
    </fieldset>
</fields>

filter (optional) allow the system to save certain html tags or raw data.

(from https://docs.joomla.org/Text_form_field_type)

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