How can I fix, when closing the reveal modal window, the content remains?

Question

css

Please help me figure it out.
I use the plugin for modal windows reveal modal - 2web-master.ru/reveal-modalnye-okna-na-jquery.html...
Modal windows contain registration and login forms, and there are custom checkboxes.
If you put a check mark in the modal window and close the window, the check mark remains on the page.
As I understand it, the internal contents of the window are not deleted.
How can this be fixed in this plugin, maybe someone knows, please advise ways to solve it.
Thanks in advance for your replies

Answer 1

I made modal windows with bootstrap. I use the following script to remove the content of a modal window

<script type="text/javascript">
    $('body').on('hidden.bs.modal', '.modal', function () {
        $(this).removeData('bs.modal');
    });
</script>