MVC modal showing in full screen - asp.net-mvc

Question

Today I came across with this, I tried doing what was in the project and came across with the OP's problem about the full screen modal. I saw a solution below about about cutting the div and pasting it in an outer div.
I did what was in the solution but what happens is that the full modal div is retained and the normal popup shows.
If I add it to the script, no popup shows but backdrop changes.
How do I solve this? Thanks in advance
UPDATE
PARENT VIEW BUTTON
<button type="button" class="btn btn-success btn-sm modal-link" data-targeturl="#Url.Action("_Popup","Application",new { MotorId = item.motor_id, Serialno = item.serialno, AppNo = item.application_no, Remarks = item.remarks })"> View
</button>
PARENT MODAL
<div id="modal-container" class="modal fade" tabindex="-1" role="dialog">
X
<div class="modal-content">
<div class="modal-body"></div>
</div>
</div>
SCRIPT
$(function () {
$('body').on('click', '.modal-link', function (e) {
e.preventDefault();
$("#modal-container").remove();
$.get($(this).data("targeturl"), function (data) {
$('<div id="modal-container" class="modal fade">' + '<div class="modal-content" id="modalbody" >' + data + '</div></div>').modal();
});
});
});
PARTIAL VIEW
#model iVehicle.ViewModel.FranchiseViewModel
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body">
<p>Some content here</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>