GRPC WEB via Istio Sidecar

Generating protobuf impl JS with protoc

protoc -I.
--plugin="protoc-gen-ts=./node_modules/.bin/protoc-gen-ts"
--js_out="import_style=commonjs,binary:./grpc-web"
--ts_out="service=grpc-web:./grpc-web"
./helloworld.proto

GRPC web enablement

All we need is naming the port on Service definition to grpc-web then istio will detect the port name and adding filter support under the hood, WITHOUT addional istio filter definition deployed. That's it.