[Users] WMSGetFeatureInfo() issue

Mon Mar 22 23:09:46 CET 2010

Dear,

Yes, I forgot the same origin policy on this one. Solved now, thank's!

For who's interested. I run the demo I'm developing from Xampp (on USB disk).

Edited two files:
\xampp\apache\conf\httpd.conf
Unchecked the following:
 LoadModule proxy_module modules/mod_proxy.so
 LoadModule proxy_http_module modules/mod_proxy_http.so

\xampp\apache\conf\extra\httpd-proxy.conf
ProxyPass       /dmt/  http://mygeoserverurl/dmt/

In the js code, I use localhost now.

Many thank's,

Kris

-------- Original-Nachricht --------
> Datum: Mon, 22 Mar 2010 14:51:52 -0600
> Von: Tim Schaub <tschaub at opengeo.org>
> An: users at geoext.org
> Betreff: Re: [Users] WMSGetFeatureInfo() issue

> 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.
> _______________________________________________
> Users mailing list
> Users at geoext.org
> http://www.geoext.org/cgi-bin/mailman/listinfo/users

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