Ext Designer and 'application/json' header. A way to change the default headers?

[oresistemas]

Hi. When I use the Ext Designer, is there a way to change the default headers?

When I work in Ext Designer, Ext Designer only works well with json but provided with http normal headers. With 'application/json' header, Ext Designer cannot load the data store.

I use Ext Designer Version: 1.2.2 Build: 48

Any idea?