I have a list of comments being loaded on demand via an ajax proxy in an app I'm building and they show up just fine on desktop browsers and my iPhone, but for some reason they are not showing up on an older android phone.

The comments are loaded in via a store as such:

Code:
Ext.define('Kona.store.Comments', {
    extend: 'Ext.data.Store',


    requires: 'Ext.DateExtras',


    config: {


        model: 'Kona.model.Comment',
        proxy: {
          type: 'ajax',
          url: 'comments.json',
          reader: {
            type: 'json',
            record: 'comment'
          }
        },
        sorters: [


        ]
    }
})
which is triggered from a controller:

Code:
Ext.define('Kona.controller.Activities', {
  extend: 'Ext.app.Controller',


  config: {
    refs: {
      activity: 'activity',
      chatButton: 'chatButton',
      commentsStore: 'commentsStore',
      comments: 'comments'
    },
    control: {
      activity: {
        initialize: 'initActivity',
        activate: 'onActivityActivate'
      },
      commentsStore: {
        load: 'onCommentsLoad'
      },
      chatButton: {
        toggle: 'onChatButtonChange'
      }
    }
  },
  initActivity: function() {






  },
  onCommentsLoad: function() {


  },
  onActivityActivate: function() {
    var comments = this.getComments();
    this.commentStore = Ext.getStore('Comments');
    this.commentStore.load({url: this.getActivity().config.commentsUrl, callback: function(records) {
        alert(records[0].content);
        var scroller = comments.getScrollable().getScroller();


        scroller.scrollBy(0,100000)


      }
    });
  }


});


they are loaded into the comments list view:
Code:
Ext.define('Kona.view.comment.List', {


    extend: 'Ext.List',


    xtype: 'comments',


    config: {


        items: [
        ],


        itemTpl: [
            '<div class="comment"><div class="content">{content}</div></div>'
        ]
    },


    initialize: function() {
        this.callParent(arguments);
    }
});
Any idea what might be the issue? Thanks in advance!