Kris Nackaerts wrote:
> Hi All,
>
> First, I'm new to geoExt, apologies when this is a trivial issue.
>
Welcome!
> The following code is not working correctly. When using firebug, the request
> that is send to Geoserver is correct, and geoserver returns the expected
> data. e.text however remains empty. Note the datalayer queried is a 16 bit
> raster dataset.
>
> var featureInfo = new OpenLayers.Control.WMSGetFeatureInfo();
> featureInfo.events.on({
> getfeatureinfo: function(e) {
> alert(e.text);
> }
> });
>
>
> map.addControl(featureInfo);
> featureInfo.layers = [bathy];
> featureInfo.activate();
>
> The issue: e.text remains empty.
>
> Some additional info:
>
> * e.request.statusText='OK'
> * e.request.status=0
> * e.request.readyState=4
> * e.request.responseText=""
>
Do you know about the same origin policy?
http://en.wikipedia.org/wiki/Same_origin_policy
If your map is served up from http://localhost/path/to/map and you're
trying to make a request to http://localhost:8080/geoserver/... then
you're violating the same origin policy.
If this is your issue, see the following:
http://trac.openlayers.org/wiki/FrequentlyAskedQuestions#ProxyHost
If this is not your issue, it would be easiest to help debug if your
application was accessible. (And an OpenLayers list would probably be a
better fit.)
Tim
> Based on Firebug, I can discover that Geoserver returns the following (by
> manually copying/pasting the URL request into a new page):
>
> <html>
> <head>
> <title>Geoserver GetFeatureInfo output</title>
> </head>
> <style type="text/css"> ... </style>
> <body>
>
> <table class="featureInfo">
> <caption class="featureInfo">DMT:dmt_original_values_proto</caption>
>
> <tr>
> <th>fid</th>
> <th >GRAY_INDEX</th>
> </tr>
>
> <tr>
>
> <td></td>
> <td>1558.0</td>
>
> </tr>
> </table>
> <br/>
>
> </body>
> </html>
>
> Any ideas, comments ware welcome,
>
> Kris
--
Tim Schaub
OpenGeo - http://opengeo.org
Expert service straight from the developers.
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