backend-handle

@@ -19,6 +19,9 @@ const geetest = {
             //     success: data.success
             // };
 
+            if (!data.success) {
+                req.session.useYohoCaptcha = true;
+            }
             res.send(data);
         }).catch(next);
     },

@@ -23,6 +23,12 @@ const check = (req, res, next) => {
     // 使用极验证
     let useGeetest = !_.get(req.app.locals.wap, 'geetest.validation', false);
 
+    // 某次请求极验证调用注册失败，强制使用自有图形验证码
+    if (req.session.useYohoCaptcha) {
+        useGeetest = false;
+        req.session.useYohoCaptcha = false;
+    }
+
     return (useGeetest ? geetest : captcha).validate(req, res, next);
 };