[OpenLayers-Users] OpenLayers.LoadURL for kml file - Unhandled request return found

[ashlin]

Hi,

I would like to know if there is any limit in the kml file size or http
request object. I have tried to load a 1.5mb(9000 markers) kml file using
the methods below. It showed a javascript error popup window "Unhandled
request return found". However, it works fine when i reduced the kml file
size to around 59kb (300 markers). What could be the possible problem?

function load() {
            OpenLayers.loadURL("kml/doc.kml", "", null, parseData);
 }


function parseData(req) {
	    
          g =  new OpenLayers.Format.KML({extractStyles: true});
          
          features = g.read(req.responseText);

	    var url = 'http://labs.google.com/ridefinder/images/mm_20_red.png';
            var sz = new OpenLayers.Size(10, 17);
            var calculateOffset = function(size) {
                                    return new OpenLayers.Pixel(-(size.w/2),
-size.h);
                                 };

          var icon = new OpenLayers.Icon(url, sz, null, calculateOffset);
          var countMarkers = 0;    
	  var myArray = new Array();
  
          for(var feat in features) {
		myArray[feat] = new OpenLayers.Marker(new
OpenLayers.LonLat(features[feat].geometry.x, features[feat].geometry.y),
icon.clone());
   		//alert(features[feat].geometry.x);
   	      
		myArray[feat].events.register("click", {'marker':myArray[feat],
'testNo':feat},

                function (e) {
			alert(this.testNo);
			onFeatureSelect(features[this.testNo]);
			//Event.stop(e);

                 }     );

		kmlLayer.addMarker(myArray[feat]);
	  	countMarkers++;

           }
		
		alert(countMarkers);
        }


ashlin
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