MetaKey in Mouse click event for ionic 1

ionic-v1
1

I am using ionic 1 with angular 1.6.3. I found that the mouse click event is missing the metaKey for all the time. Is there anyway we can get the metaKey back in the event?

  $scope.click = function(event) {
    console.log(event.metaKey);
  };

  <button ng-click="click($event)">Click</button>