First of all, I appreciate the plugin, it's wonderful! 👍

I have a <select> field where I mentioned HTML5 required attribute: <select required multiple="multiple">...</select>. But when the plugin is activated it's not there. Because none of the <input> fields is holding the sign required.

Suggestion

I can share my idea, you can implement another hidden input field with the required attribute in place, and can validate the form. But I know, you know better than me. :)