title: Chrome [Violation] 'load' handler took 808ms
body: <p>I worked with openlayer3. Now I got this kind of warning:
  Console:</p>
  <pre><code>[Violation] 'load' handler took 308ms  ol-debug.js.xhtml?ln=js:6967 
  [Violation] 'load' handler took 808ms
  ol.events.bindListener_ = function(listenerObj) {
    var boundListener = function(evt) { // &lt;- Zeile 6967
      var listener = listenerObj.listener;
      var bindTo = listenerObj.bindTo || listenerObj.target;
      if (listenerObj.callOnce) {
        ol.events.unlistenByKey(listenerObj);
      }
      return listener.call(bindTo, evt);
    };
    listenerObj.boundListener = boundListener;
    return boundListener;
  };
  </code></pre>
  <p>Is it maybe a bug on Google Chrome?</p>
  <p>Thanks</p>