请参考：https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/JS-SDK.html#%E9%99%84%E5%BD%951-JS-SDK%E4%BD%BF%E7%94%A8%E6%9D%83%E9%99%90%E7%AD%BE%E5%90%8D%E7%AE%97%E6%B3%95
注意参数url
微信开发者，jssdk报config:fail,Error: 系统错误,错误码:63002,invalid signature
原文：https://www.cnblogs.com/hpx2020/p/12313549.html
