Just a quick update that I made this change: http://github.com/BigLep/ExtJsWithDw...0a1b2aab6392d5
Refactored DwrProxy so that it mirrors Ext.data.HttpProxy. The load method has been removed. This is a first step to make it easier to support additional CRUD methods, and to make one understand the proxy code easier as it's now more similar to Ext 3.x's proxies. The upgrade guide was also updated noting to not use the loadexception event or the load method as they have both been deprecated in Ext 3.x.