EchoAbort test failing with grpcWeb client

[johanbrandhorst]

Hi Alex!

Long time no see! I upgraded the grpc-web-compatibility-test repo today following a new grpcWeb release and it seems that sonora (nee grpcwsgi) is now failing the EchoAbort request test:

https://app.circleci.com/pipelines/github/johanbrandhorst/grpc-web-compatibility-test/43/workflows/d98f6ef2-52a4-464c-a367-6b1cf9c7551c/jobs/562/steps

I've verified this locally, it seems to return 500 Internal Server Error and no content. I've marked the test as failing for now, but I did into it without really finding the cause. Python gRPC is not my expertise, so I thought I'd just raise an issue.

[public]

Thanks for letting me know. I'll take a look :)