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bug(modal): data-backdrop="static", data-keyboard="false" not work #568

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@hongbo-miao

Description

@hongbo-miao

In Bootstrap 4, we can disable click outside of bootstrap model area to close modal by adding data-backdrop="static".
And data-keyboard="false" to prevent close on ESC button.

Like this:

<button class="btn btn-primary" data-toggle="modal" data-target=".bd-example-modal-lg">Large modal2</button>
<div class="modal fade bd-example-modal-lg" tabindex="-1" role="dialog" aria-labelledby="myLargeModalLabel" aria-hidden="true" data-backdrop="static" data-keyboard="false">
  <div class="modal-dialog modal-lg">
    <div class="modal-content">
      ...
    </div>
  </div>
</div>

However, either of them do not work on ng2-bootstrap modal.

<button class="btn btn-primary" (click)="lgModal.show()">Large modal</button>
<div bsModal #lgModal="bs-modal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myLargeModalLabel" aria-hidden="true" data-backdrop="static" data-keyboard="false">
  <div class="modal-dialog modal-lg">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" (click)="lgModal.hide()" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
        <h4 class="modal-title">Large modal</h4>
      </div>
      <div class="modal-body">
        ...
      </div>
    </div>
  </div>
</div>

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