html modal popup without bootstrap code example
Example 1: bootstrap modal popup backdrop false
<button class='btn btn-danger fa fa-trash' data-toggle='modal' data-target='#deleteModal' data-backdrop='static' data-keyboard='false'></button>
Example 2: bootstrap pop modal from another modal
// Hide current modal before opening new one
$("#idModal").modal('hide');
$("#idModal2").modal() // or .modal("show");
// show 1st modal again after closing 2nd modal
$("#idModal2").on('hidden.bs.modal', () => $("#idModal").modal('show'))
// using hide.bs.modal might cause modal to stop scrolling!!!