fix

@@ -35,6 +35,7 @@ const generate = (req, res, next) => {
     req.ctx(CaptchaServiceModel).generateCaptcha(req.session.id).then((result) => {
         res.type('png');
         if (result.code === 200) {
+            console.log(result.data.url);
             request({
                 url: result.data.url,
                 headers: {