unexpected non-whitespace character after JSON data

[holden]

SyntaxError: JSON.parse: unexpected non-whitespace character after JSON data
[Break On This Error]

this.options.itemSelected(JSON.parse($selectedItem.attr('data-value')));

Bootstrap 2.2.1

    $('#q').typeahead
      source: '/admin/search.json'
      val: '_id'
      #tmpl: _.template("<li id=\"<%= _id %>\"><a href=\"/admin/reviews/<%= _id %>\"><%= name %>, sdfsdf<%= reviewable_type %></a></li>")
      minLength: 3
      itemSelected: ->
        alert "Congratulations you used everything!"

When I try to use the template, I can see the URL links are correct but when I click it, I get the same error and no redirect.

json

[{"_id":"4f956b76d97ab00001000027","reviewable_type":"City","name":"Krak\u00f3w"},{"_id":"4ff94b8725b1a80001000006","reviewable_type":"Place","name":"Bomba"},{"_id":"4fe056caa9e05f0001000030","reviewable_type":"Place","name":"Singer"},{"_id":"50a8286ddced86b247000014","reviewable_type":"Place","name":"Burgermeister"},{"_id":"4fddff698fdfdf0001000009","reviewable_type":"Place","name":"Miejsce"},{"_id":"4f7efda4a660a20001000022","reviewable_type":"Place","name":"Plan B"},{"_id":"4f8c506018e6d3000100000a","reviewable_type":"Place","name":"Propaganda"},{"_id":"4fe188af4e8f460001000007","reviewable_type":"Place","name":"Alebriche"},{"_id":"4f7ec8231c3f30000100002d","reviewable_type":"City","name":"Montreal"},{"_id":"5011352f6f98860002000004","reviewable_type":"Place","name":"Charlotte: Chleb i Wino"}]

[pashazel]

+1
jquery 1.8.3
Bootstrap 2.2.2

if you remove the check
if (typeof that.options.val === 'string') (l 175)
it will work. sorry for my english