GeoXML3 unable to retrieve KML file

Question

For some reason I can not get geoxml3 to load my KML file. I've tried using a publicly available URL for the file, and a local reference to the file in Chrome, Safari and Firefox all with no effect. When I use Chrome, I get a console message that says

Unable to retrieve file.

My code is very simple:

function initialize() {
var infowindow = new google.maps.InfoWindow({size: new google.maps.Size(150,50) });
var map_canvas = document.getElementById('map_canvas');
var center = new google.maps.LatLng(53, -88);
var map_options = {
  center: center,
  zoom: 4,
  mapTypeId: google.maps.MapTypeId.TERRAIN
};

var map = new google.maps.Map(map_canvas, map_options);

var myParser = new geoXML3.parser({map: map, singleInfoWindow: true});
myParser.parse('https://sites.google.com/site/.../home/kml-files/ontario_regions_yan_1.kml');
}

I've tried all the various solutions offered in other questions but have been unable to get the file to load! Is there something simple I'm missing?

Answer 1

It turns out that unfortunately I didn't have the correct version of geoxml3.js. I downloaded the file from the polys branch and everything works perfectly.

Answer 2

geoxml3 uses xmlHttpRequest to retrieve the KML, xmlHttpRequest has a same domain restriction. The KML needs to be in the same domain as the page which is loading it or be loaded through a proxy which is in the same domain as the page which is loading it.

SO question - xmlHttpRequest and cross-site restriction

your KML on geocodezip.com through a proxy

KmlLayer doesn't have that restriction (google server is loading the KML directly)

The domain needs to be the same. Relative URLs ensure that. Trying to load something from http://geocodezip.com on a page on http://www.geocodezip.com won't work:

• working
• not working

geocodezip.com and www.geocodezip.com are different domains (no matter how similar they may look). A relative path is relative to where the page is being served from (not the geoxml3.js script)