I'm currently developing an application with the OpenGeo SDK. I wish to have the "Add New Server" functionality and I've followed the example from the documentation: http://suite.opengeo.org/opengeo-docs/webapps/sdkintro/viewer/addnewserver.html
In my applications file, I've added proxy: "proxy/?url=" and also * @require overrides/override-ext-ajax.js
When I test the application on my server (e.g., suite-sdk debug path/to/myapp) everything works fine.
However, when I deploy the application (I use a Tomcat container) then the "Add New Server" functionalities doesn't work any more. I've always the following error message when I try to add a WMS: Error getting WMS capabilities (Layer source not available.). Please check the URL and try again.
I don't know what I'm doing wrong.