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GrpcWeb

The GrpcWeb middleware converts gRPC Web requests to HTTP/2 gRPC requests before forwarding them to the backends.

Please note, that Traefik needs to communicate using gRPC with the backends (h2c or HTTP/2 over TLS). Check out the gRPC user guide for more details.

Configuration Options​

allowOrigins​

FieldDescription
allowOriginsThe allowOrigins contains the list of allowed origins.
A wildcard origin * can also be configured to match all requests.
apiVersion: traefik.io/v1alpha1
kind: Middleware
metadata:
  name: test-grpcweb
spec:
  grpcWeb:
    allowOrigins:
      - "*"

More information including how to use the settings can be found at: