[OpenLayers-Users] this.callbacks is undefined error

[Bart van den Eijnden (OSGIS)]

Hi Bill,

this was because the proxy wasn't overriding the OGC mimetype to text/xml.

This is fixed now see:
http://trac.openlayers.org/changeset/9109
http://trac.openlayers.org/changeset/9110

Best regards,
Bart

Bill Thoen wrote:
> bartvde at osgis.nl wrote:
>> Hi,
>>
>> first of all, please don't cross-post to dev and users if it is not
>> necessary.
>>
>> Maybe you can check out the following for pointers:
>>
>> http://dev.openlayers.org/sandbox/bartvde/wmsgetfeatureinfo/openlayers/lib/OpenLayers/Control/FeatureInfo.js 
>>
>>   
> I think this has a bug in it that brings down IE7.
>
> In the returnResponse() function of FeatureInfo.js I had to check for 
> IE7 returning an empty string object in response.responceXML, and set 
> it explicitly to null. Because if I didn't do that IE7 dies horribly 
> when the code gets into the read() function in WMSGetFeatureInfo.js at 
> line 74-75.
>
> Under the same conditions FireFox sets the response.responseXML to 
> null and has no problems.
>
> - Bill Thoen
>
>
>
>


-- 
Bart van den Eijnden
OSGIS, Open Source GIS
bartvde at osgis.nl
http://www.osgis.nl