Eryu Xia

Glad you found a solution! 😃 More native Service Worker support would definitely be a plus for gRPC-web too :)

FYI -- an update about the reason we cannot yet switch to fetch is provided in [this related thread](https://github.com/grpc/grpc-web/issues/1154#issuecomment-973217846) :)

@AsmaRahimAliJafri Thanks for the report and sorry for the trouble! But sorry we don't own the `protoc-gen-grpc-web` npm package nor do we currently maintain a npm package that deliveries the...

Thanks Andrey :) I'm not sure about all the history behind the decision, but Envoy is now the recommended proxy with official grpc-web support. Maybe others would know more. :)

@zakhio I've tried asking but sorry have not received definitive answers :) === @idc77 your frustration is understood.. and sorry that you feel that way. But please avoid using derogatory...

Thanks for the question! I'm curious if in your testing, are you able to get the 'metadata' event callback **without** using the interceptor? --- I'm not exactly sure how to...

Thanks for report :) As far as i could tell, we're correctly passing along option as the [`withCredentials` attribute on the XHR](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/withCredentials): https://github.com/grpc/grpc-web/blob/ce7d734e8a1a7d1f09fd6bdb23299f3ef7447887/javascript/net/grpc/web/grpcwebclientbase.js#L188 Could you provide more details on how...

Thanks for the additional info :) From my local testing using the [echo server](https://github.com/grpc/grpc-web/blob/master/net/grpc/gateway/docker/commonjs_client/Dockerfile), `withCredentials: true` will fail CORS check due to `Access-Control-Allow-Credentials` is not set on the test server....

Thanks for the interest. :) > Seems like this exists now? https://github.com/grpc/grpc-web/tree/master/src/connector @jvolkman Unfortunately we have no timeline to release that as an official solution. It was an experiment only...

Thanks for the question.. Would you mind taking a look at your setup and compare it with our echo server demo setup and see how they differ? https://github.com/grpc/grpc-web/tree/master/net/grpc/gateway/examples/echo thanks :)