title: uploading error when using carrierwave and uploadify
body: <p>i was trying for <code>uploadify</code> with <code>carrierwave</code> to support <code>multiple file upload</code> but it is giving me this error <code>GET http://localhost:3000/users/uploadify.swf?preventswfcaching=1361694618739</code>.
  Basically i ve one <code>model</code> named as <code>user</code>. For single upload it is working fine with carrierwave but for multiple file it is not.</p>
  <p>I ve followed <a href="https://stackoverflow.com/questions/8363698/rails-carrier-wave-with-jquery-uploader">this</a> tutorial.
  In <code>users/_form.rb</code></p>
  <pre><code>&lt;p&gt;
  &lt;%= f.label &quot;Upload Images&quot;%&gt;
  &lt;%= f.file_field :image, :multiple =&gt; true %&gt;
  &lt;/p&gt;
  
  &lt;script type= &quot;text/javascript&quot;&gt;
  $(document).ready(function() {
   &lt;% key = Rails.application.config.session_options[:key] %&gt;
    var uploadify_script_data = {};
    var csrf_param = $('meta[name=csrf-param]').attr('content');
    var csrf_token = $('meta[name=csrf-token]').attr('content');
    uploadify_script_data[csrf_param] = encodeURI(encodeURIComponent(csrf_token));
    uploadify_script_data['&lt;%= key %&gt;'] = '&lt;%= cookies[key] %&gt;';
  
    $('#user_image').uploadify({
    uploader        : '&lt;%= asset_path(&quot;uploadify.swf&quot;)%&gt;',
    script          : '/images',
    cancelImg       : '&lt;%= asset_path(&quot;uploadify-cancel.png&quot;)%&gt;',
    auto            : true,
    multi           : true,
    removeCompleted     : true,
    scriptData      : uploadify_script_data,
    onComplete      : function(event, ID, fileObj, doc, data) {
    }
    });  
   });
  &lt;/script&gt;
  </code></pre>
  <p>I m using mongoid so the model is like this</p>
  <pre><code>class User
   include Mongoid::Document
   field :name, type: String
   field :description, type: String
   field :image, type: String
  
     mount_uploader :image, ImageUploader 
   end
  </code></pre>
  <p>I m not getting what is the error. Please help me out.</p>