Promise Raising as Uncaught in Comma Chameleon

validation.js

// line 54-86, feature-prebaked
// inclusion of printErrs is because type returns as undefined
function displayValidationMessages(validation) {
  console.log(JSON.stringify(validation,null, 2));
  var $messagePanel = $('#message-panel');
  $messagePanel.html("<h4>Validation results <img src='" + validation.badges.png  +"' /></h4>");
  var resultsTemplate = _.template('<p><%= validation.errors.length %> errors, <%= validation.warnings.length %> warnings and <%= validation.info.length %> info messages:</p>')
  $messagePanel.append(resultsTemplate({'validation': validation}));
//TODO the errorText function below is truncated and isn't doing what it should be doing
  var printErrs = validation.errors[0];
  console.log(errorText(type));
  console.log(errorGuidance(type, row, col));
  var messageTemplate = _.template('<div><h5><%= errorText(type) %></h5><p><%= errorGuidance(type, row, col) %></p></div>');
  var messages = _.flatten([
    _.map(validation.errors,   function(d) { return _.extend({}, d, { msg_type: 'error' }) }),
    _.map(validation.warnings, function(d) { return _.extend({}, d, { msg_type: 'warning' }) }),
    _.map(validation.info,     function(d) { return _.extend({}, d, { msg_type: 'info' }) })
  ]);
  if (messages.length) {
    var elements = _.map(messages, function(message) {
      return $(messageTemplate(message)).data(message)
        .addClass('message')
        .addClass('validation-' + message.msg_type);
    });
    $messagePanel.append(elements);
  } else {
    $messagePanel.append('<p>CSV Valid!</p>');
  }

  clearHighlights();

  $messagePanel.on('click', '.message', function() {
    highlightCell($(this).data());
  });
}

validation_param.js

// this is an example validation arg that is passed to function above
{
  "url": "http://csvlint.io/validation/56027e4363737614390006e7",
  "source": null,
  "state": "invalid",
  "errors": [
    {
      "type": "ragged_rows",
      "category": "structure",
      "row": 3,
      "col": null
    }
  ],
  "warnings": [],
  "info": [
    {
      "type": "assumed_header",
      "category": "structure",
      "row": null,
      "col": null
    }
  ],
  "standardisedCSV": "http://csvlint.io/validation/56027e4363737614390006e7.csv",
  "badges": {
    "svg": "http://csvlint.io/validation/56027e4363737614390006e7.svg",
    "png": "http://csvlint.io/validation/56027e4363737614390006e7.png"
  }
}