diff --git a/examples/kml.js b/examples/kml.js
index 098e7f5554..772eb74928 100644
--- a/examples/kml.js
+++ b/examples/kml.js
@@ -4,7 +4,6 @@ goog.require('ol.View2D');
 goog.require('ol.layer.TileLayer');
 goog.require('ol.layer.Vector');
 goog.require('ol.parser.KML');
-goog.require('ol.proj');
 goog.require('ol.source.TiledWMS');
 goog.require('ol.source.Vector');
 
@@ -41,7 +40,7 @@ var map = new ol.Map({
   renderer: ol.RendererHint.CANVAS,
   target: 'map',
   view: new ol.View2D({
-    projection: ol.proj.get('EPSG:4326'),
+    projection: 'EPSG:4326',
     center: [-112.169, 36.099],
     zoom: 11
   })
diff --git a/src/objectliterals.jsdoc b/src/objectliterals.jsdoc
index e66498c204..fdbf4f59e7 100644
--- a/src/objectliterals.jsdoc
+++ b/src/objectliterals.jsdoc
@@ -508,7 +508,8 @@
  * @property {ol.parser.Parser} parser Parser instance to parse data
  *     provided as `data` or fetched from `url`.
  * @property {ol.ProjectionLike|undefined} projection Projection. EPSG:4326
- *     is assumed if not defined.
+ *     is assumed if not defined. TODO: Get projection from the parser instead
+ *     of assuming EPSG:4326.
  * @property {string|undefined} url Server url providing the vector data.
  */
 
diff --git a/src/ol/renderer/canvas/canvasvectorlayerrenderer.js b/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
index a211bd4786..bc378f465c 100644
--- a/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
+++ b/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
@@ -228,8 +228,7 @@ ol.renderer.canvas.VectorLayer.prototype.getFeatureInfoForPixel =
  * @param {function(Array.<ol.Feature>, ol.layer.Layer)} success Callback for
  *     successful queries. The passed arguments are the resulting features
  *     and the layer.
- * @param {function(Object)=} opt_error Callback for
- *     unsuccessful queries.
+ * @param {function()=} opt_error Callback for unsuccessful queries.
  */
 ol.renderer.canvas.VectorLayer.prototype.getFeaturesForPixel =
     function(pixel, success, opt_error) {
@@ -255,7 +254,7 @@ ol.renderer.canvas.VectorLayer.prototype.getFeaturesForPixel =
     if (goog.isNull(candidates)) {
       // data is not loaded
       if (goog.isDef(opt_error)) {
-        goog.global.setTimeout(function() { opt_error({}); }, 0);
+        goog.global.setTimeout(function() { opt_error(); }, 0);
       }
       return;
     }
diff --git a/src/ol/source/vectorsource.js b/src/ol/source/vectorsource.js
index 1f7b6d935f..6dee9600cf 100644
--- a/src/ol/source/vectorsource.js
+++ b/src/ol/source/vectorsource.js
@@ -6,6 +6,17 @@ goog.require('ol.proj');
 goog.require('ol.source.Source');
 
 
+/**
+ * @enum {number}
+ */
+ol.source.VectorLoadState = {
+  IDLE: 0,
+  LOADING: 1,
+  LOADED: 2,
+  ERROR: 3
+};
+
+
 
 /**
  * @constructor
@@ -50,10 +61,10 @@ goog.inherits(ol.source.Vector, ol.source.Source);
 
 
 /**
- * @param {ol.layer.Layer} layer Layer that parses the data.
+ * @param {ol.layer.Vector} layer Layer that parses the data.
  * @param {ol.Extent} extent Extent that needs to be fetched.
  * @param {ol.Projection} projection Projection of the view.
- * @param {Function=} opt_callback Callback which is called when features are
+ * @param {function()=} opt_callback Callback which is called when features are
  *     parsed after loading.
  * @return {ol.source.VectorLoadState} The current load state.
  */
@@ -84,14 +95,3 @@ ol.source.Vector.prototype.prepareFeatures = function(layer, extent, projection,
   }
   return this.loadState_;
 };
-
-
-/**
- * @enum {number}
- */
-ol.source.VectorLoadState = {
-  IDLE: 0,
-  LOADING: 1,
-  LOADED: 2,
-  ERROR: 3
-};