update: 取消添加小程序二次确认

src/components/set/add-customize-app.vue

@@ -82,10 +82,10 @@ export default {
       that.$refs['ruleForm'].resetFields();
     },
     submitForm: _debounce(function(formName) {
-      if (!this.ruleForm.imageUrl) return this.$message.warning('请提供小程序的封面');
       const that = this;
       that.$refs[formName].validate(valid => {
         if (valid) {
+          if (!this.ruleForm.imageUrl) return this.$message.warning('请提供小程序的封面');
           that.postSave();
         }
       });