title: ERR_EMPTY_RESPONSE node.js after adding Integer to create entry
body: <p>I use node.js express and sails.js to build my app.</p>
  
  <p>When I added another input into my view it crashed on save.</p>
  
  <p>ERR_EMPTY_RESPONSE</p>
  
  <pre><code>create: function(req, res){
      var title = req.body.title;
      var body = req.body.body;
      var kUser = req.body.kUser;
  
      Knowlege.create({title:title, body:body, kUser:kUser}).exec(function(err){ // kUser:kUser seems to be the problem
          if(err){
              res.send(500, {error: 'Database Error'});
          }
          res.redirect('/knowlege/list');
      });
  </code></pre>
  
  <p>Error in terminal:</p>
  
  <pre><code>Error: Can't set headers after they are sent.
  at validateHeader (_http_outgoing.js:489:11)
  at ServerResponse.setHeader (_http_outgoing.js:496:3) (...)
  </code></pre>
  
  <p>Model:  </p>
  
  <pre><code> module.exports = {
    attributes: {
      title:{
        type: 'string'
      },
      body:{
        type: 'text'
      },
      kUser:{
        type: 'integer',
        length: '11'
      }
    },
    connection:'MysqlServer'
  };
  </code></pre>