When using two modals of bootstrap on close of second modal the scroll of the first modal is not working .

this is my code

<div class="modal fade" id="dashboardModal" aria-hidden="true" data-backdrop="static" data-keyboard="false" role="dialog">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal">&times;</button>
                <h4 class="modal-title" id="modalTitle"></h4>
            </div>
    </div>
            <div class="modal-footer">
            </div>
        </div>
    </div>
</div>