lib/Ext/data/proxy/Server.js
function(operation, response) {
        if (Ext.isObject(response)) {
            operation.setException({
                status: response.status,
                statusText: response.statusText
            });
        }
    }
function(operation, response) {
        if (Ext.isObject(response)) {
            operation.setException({
                status: response.status,
                statusText: response.statusText
            });
        }
    }
Sets up an exception on the operation
@private
@param {Ext.data.Operation} operation The operation
@param {Object} response The response