FullCalendar's dayClick not firing when a date is tapped

What I'm trying to do. Tap a day in the calendar and have show the details of that day's events in the area below it.

How I'm doing it. With Angular and the ui-calendar directive. In FullCalendar's dayClick event, I'm creating a new set of events that are happening on that day. In the template, I'm doing a typical ng-repeat="event in daysEvents" div. This works perfectly fine when I'm testing it in ionic serve.

The problem. The dayClick event doesn't work in the iOS emulator, when I send the app to my device (with ionic run ios) or Chrome Developer Tools "Toggle device mode".

The code. Here's my controller:

angular.module('starter.controllers', ['ui.calendar'])

.controller('CalendarCtrl', function($scope) {
  $scope.eventSources = [
    {
    title: "Spring Awards Night",
    start: moment("2015-5-19 18:30"),
    description: "The Spring Awards are awesome and you should come."
    }
  ]

  $scope.uiConfig = {
    calendar:{
      height: 'auto',
      editable: false,
      header:{
        left: 'prev',
        center: 'title',
        right: 'next'
      },
      dayClick: function(date, jsEvent, view) {
        $scope.daysEvents = $scope.eventSources.filter(function(event){
          return event.start.isBetween(date, moment(date).add(1, 'days'));
        });
        $(".fc-day").removeClass("fc-selected");
        $(this).addClass("fc-selected");
      }
    }
  };

And part of my template:

<div ui-calendar="uiConfig.calendar" ng-model="eventSources"></div>

If you need anything else, let me know. Thanks in advance.