使用uni-id获取openid出现 errCode: 41008 | errMsg: missing code, hints: [ req_id: bGBFvOnre-h1D8Qa ]

使用unicloud的uni-id插件获取微信的openid出现一下 errCode: 41008 | errMsg: missing code, hints: [ req_id: bGBFvOnre-h1D8Qa ]

 原因是code未正确赋值/导致缺少code。