Modal video sound issue

Question

I have an issue, so I have a function that allows me to play the video and close it on modal window. And the issue is when there is some actions on page happening (like checkbox point) the modal video window closes but sound keeps playing.

( function( $ ) {
    $( document ).ready( function() {
        $( '.modal' ).appendTo( 'body' );

        //stops video from playing on click off
        $( '.modal' ).on( 'hide.bs.modal', function () {
            $currentIframe = $( this ).find( 'iframe' );
            $currentIframe.attr( 'src', $currentIframe.attr( 'src' ) );
        } );
    } );

} )( jQuery );