I am trying to use the AjaxProxy with the "api" config option to support different store URL's for reading and updating.

I use it this way:

proxy: {
    type: 'ajax',
    api: {
      read: '/dime_list',
      update: '/dime_update'
    reader: {
      type: 'json',
      root: 'items'
Reading works well but in case of an update I've got an error: "You are using a ServerProxy but have not supplied it with a url."

Does anybody know the reason for that behaviour?

Another confusing thing I have found in the documentation. The doc of the class AjaxProxy (config option "api") says that there are the following actions available "read, create, update, destroy". A paragraph below there are the following actions mentioned "load, create, save, destroy". Which are correct?