ext.domquery.isxml is undefined

[dsac]

Hi,

while trying to parse xml through an ajax proxy, i'm getting this error:

Uncaught TypeError: Object [object Object] has no method 'isXml'

As far as i understand, "ext.domquery.isxml" isn't even defined.

related code segment:

 model: 'app.models.Category',
 autoLoad: false,
 proxy: {
     type: 'ajax',
     url: 'test.xml',
     reader: {
         type: 'xml',
         root: 'items',
         record: 'item'
     }
 }

any ideas?