MTCaptcha plugin requires javascript and cookies to be enabled on the browser.
The MTCaptcha cookies does not store any permanent or temporary identification of the browser, device or user. It is used only for managing captcha transaction and browser validation; Therefor GDPR and privacy policies related to cookie consent are not applicable and not needed.
To enable error messages for users without javascript, noscript tags can be added within the target div. eg:
<div class=’mtcaptcha’>
<noscript> your no script message here </noscript>
</div>