Versioning with endpoint V2 on GAE
问题 I have the live version of my app deployed with its endpoints (no problem with that). I also want to easily be able to test other versions (e.g. staging). With endpointV1 : no problem. With endpointV2 : Everything works fine if I deploy to the live version (at https://[PROJECT-ID].appspot.com but does not work for other versions. After deploying to staging at https://staging-dot-[PROJECT-ID].appspot.com the deployment is successful, but when the frontend calls the backend, the request is