JQM Filter+Enter Issue

HTML

<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
<input data-type="search" id="filter-input" placeholder="Search">
<div data-role="controlgroup" data-filter="true" data-filter-reveal="true" data-input="#filter-input">
  <a href="#" class="ui-btn ui-shadow ui-corner-all">Apple</a>
  <a href="#" class="ui-btn ui-shadow ui-corner-all">Banana</a>
  <a href="#" class="ui-btn ui-shadow ui-corner-all">Car</a>
</div>

JavaScript

$('#filter-input').keydown(function(e) {
  if (e.which == 13) { //Enter keycode
    // Do something here
		/* yada yada yada*/
    
    // Now clear input and set focus back to input
    $(this).val('').trigger("keyup").focus();
  }
});