getList throwing error after interceptor

Fixes #544

Author: mgonto

src/restangular.js

@@ -1048,11 +1048,11 @@ module.provider('Restangular', function() {
                   urlHandler.resource(this, $http, request.httpConfig, request.headers, request.params, what,
                           this[config.restangularFields.etag], operation)[method]().then(function(response) {
                       var resData = response.data;
-                      if (!_.isArray(resData)) {
-                        throw new Error("Response for getList SHOULD be an array and not an object or something else");
-                      }
                       var fullParams = response.config.params;
                       var data = parseResponse(resData, operation, whatFetched, url, response, deferred);
+                      if (!_.isArray(data)) {
+                        throw new Error("Response for getList SHOULD be an array and not an object or something else");
+                      }
                       var processedData = _.map(data, function(elem) {
                           if (!__this[config.restangularFields.restangularCollection]) {
                               return restangularizeElem(__this, elem, what, true, data);