后端通过正向代理携带code去换取用户openid，偶发503，失败率25%，
本地测试没问题，也不需要代理，线上生产环境会有，而且是时好时坏
相关问题
相关文档
- Raw code: Mini Program/Development/Capabilities/Industry capability/Ride Code/Raw code
- 3、 sample code: Mini Program/Development/Capabilities/Industry capability/Ride Code/Raw code
- 3、 sample code: Mini Program/Development/Capabilities/Industry capability/Ride Code/Scan Code Payment
- Scan Code Payment: Mini Program/Development/Capabilities/Industry capability/Ride Code/Scan Code Payment
- Return code: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Standard Trading Components and Open Interfaces/Server interface/Get and verify QR code interface/Generate QR code
一样遇到这情况，麻烦问下，怎么解决的呢