I am creating a web map application for a website. I am using GeoServer 2.6.2 and OpenLayers 3.2. I have not problems with WMS layers, but I am not be able to visualize vector layers. This is the javascript code that I have added (I followed this OpenLayers example and this other example):

var vector2Source = new ol.source.ServerVector({
  format: new ol.format.GeoJSON(),
  loader: function(extent, resolution, projection) {
    var url = 'http://localhost/geoserver/Workspace/wfs?service=WFS&' +
        'version=1.1.0&request=GetFeature&typename=Workspace:Polygon&' +
        'outputFormat=json' + '&srsname=EPSG:6823&bbox=' + extent.join(',') + ',EPSG:3857';
strategy: ol.loadingstrategy.createTile(new ol.tilegrid.XYZ({
  //projection: "EPSG:6823"

var vector2 = new ol.layer.Vector({
  source: vector2Source,
  style: new ol.style.Style({
    stroke: new ol.style.Stroke({
      color: 'rgba(0, 0, 255, 1.0)',
      width: 2

The browser (google chrome) shows me the following error:

XMLHttpRequest cannot load http://localhost/geoserver/Workspace/wfs?service=WFS&vers…7148101,1526294.5807983987,-9920914.775189597,1536078.5204189012,EPSG:3857. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access.

Could someone help me?

  • Is GeoServer on port 80 or 8080?
    – Ian Turton
    Commented Apr 27, 2015 at 18:45
  • GeoServer is on port 8080. Thank you iant
    – cevica
    Commented Apr 28, 2015 at 6:07

2 Answers 2


If GeoServer is served under a different domain to your page then you will need to either enable CORS on the GeoServer application server or enable JSONP requests in GeoServer and update your OL3 app to send JSONP requests.

Some of this is covered here under "Cross-domain requests": http://astuntechnology.github.io/osgis-ol3-leaflet/ol3/03-GEOJSON-INFO.html


use this CORS extension for chrome. Just add extension and on it. If not working then uncomment CORS filters in your tomcat's & geoserver's web.xml.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.