ArcGIS API for JavaScript调用SOE服务时报错，response.geometries没定义？

我是按照ArcObjects SDK for ArcGIS 10.2帮助文档写的html文件，SOE测试成功有返回值，但是用 JavaScript调用就报错


 esri.request({
              url: soeURL,
              content: content,
              callbackParamName: "callback",
              load: function(response) {         
                  drawResponseGeometries(response.geometries);
                  responseRecordsToGrid(response.records);
              },
              error: function(error) {
                  console.log(error);
              }
          });
运行时geometries没有定义