fix

@@ -236,6 +236,9 @@ const sendCodeToMobileAPI = (req, res, next) => {
 
             return res.json(jsonData);
         }
+
+        _.set(req.session, 'captcha', null);
+
     } else if (!req.session.backupCaptch.verifyResult) {
 
         return res.json({
@@ -254,6 +257,8 @@ const sendCodeToMobileAPI = (req, res, next) => {
         return res.json(ERR);
     }
 
+    
+
     service.sendCodeToMobileAsync(phoneNum, areaCode)
         .then(result => {
             if (_.isEmpty(result) || result.code !== 200) {

@@ -137,6 +137,10 @@ exports.indexCheck = (req, res, next) => {
 
 
     let errorCount = _.get(req.session, 'captchaValidCount', 4 - 1); // 初始1次 + 后续4次， 同一个验证码 共5次
+    let errorData = {
+        code: 400,
+        message: ''
+    };
 
     if (!errorCount) {
         _.set(req.session, 'captchaValidCount', 3);
@@ -150,6 +154,7 @@ exports.indexCheck = (req, res, next) => {
         _.set(req.session, 'smsLogin.area', area);
         _.set(req.session, 'smsLogin.mobile', mobile);
         _.set(req.session, 'smsLogin.step', 2);
+        req.session.captcha = null;
 
         PhoneService.sendSMS(mobile, area, 1);
 
@@ -161,25 +166,25 @@ exports.indexCheck = (req, res, next) => {
 
     // 校验 失败
     em.on('reject', error => {
-        if (req.session.captchaValidCount === 0) {
-            req.session.captcha = null; // 验证码 用过就扔
-            error.changeCaptcha = true;
-        }
-
         _.set(req.session, 'smsLogin.step', 1);
 
 
         res.json(error);
     });
 
+    if (req.session.captchaValidCount === 0) {
+        req.session.captcha = null; // 验证码 用过就扔
+        errorData.changeCaptcha = true;
+    }
+
 
     // 验证
     if ([area, mobile].some(val => val === '')) {
-        return em.emit('reject', {code: 400, message: '请填写手机号'});
+        return em.emit('reject', Object.assign(errorData, { message: '请填写手机号'}));
     } else if (!captcode) {
-        return em.emit('reject', {code: 400, message: '请填写验证码'});
+        return em.emit('reject', Object.assign(errorData, {message: '请填写验证码'}));
     } else if (!(captcodeValid && captcode === captcodeValid)) {
-        return em.emit('reject', {code: 400, message: '请将图片旋转到正确位置'});
+        return em.emit('reject', Object.assign(errorData, {message: '请将图片旋转到正确位置'}));
     }
 
     // congratulation～～