Comment

src/Grpc.HealthCheck/HealthServiceImpl.cs

@@ -142,6 +142,7 @@ public override Task<HealthCheckResponse> Check(HealthCheckRequest request, Serv
     public override async Task Watch(HealthCheckRequest request, IServerStreamWriter<HealthCheckResponse> responseStream, ServerCallContext context)
     {
         // The call has already been canceled. Writing to the response will fail so immediately exit.
+        // In the real world this situation is unlikely to happen as the server would have prevented a canceled call from making it this far.
         if (context.CancellationToken.IsCancellationRequested)
         {
             return;