Found that $$hashkey was added to the sent data? How to simply remove it?
$$hashkey
认证高级PHP讲师
Just use angular.toJson，不要用 JSON.stringify when serializing.
angular.toJson
JSON.stringify
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Just use
angular.toJson，不要用JSON.stringifywhen serializing.