Testing CORS with gRPC Gateway

1. Start the gRPC Gateway

go run cmd/gateway/main.go

2. Go to google.com and execute request from browser console

fetch(
  'http://localhost:8081',
  {
    method: 'GET',
    headers: { 'Content-Type': 'application/json' }
  }
).then(resp => resp.text()).then(console.log)