improbable-eng/grpc-web Response closed without headers

Question

I have a server in go using gRPC and on the react client I'm using grpc web with grpcwebproxy and I've been trying to connect my client to the server but constantly get error Code 2, with the message: Response closed without headers. Has anybody else encountered this issue? I'm currently using improbable-eng implementation of grpc-web.

Answer 1

grpcwebproxy: might have read/write timeout and close your longPolling connection by timeout. Relevant for all client-server streaming calls.
server_http_max_read_timeout – HTTP server config, max read duration (default 10s).
server_http_max_write_timeout – HTTP server config, max write duration (default 10s).