title: How to use grpc-web without envoy
body: <p>I am playing with <code>grpc</code> &amp; <code>grpc-web</code>. I was able to run a simple grpc server and grpc-web applications. However I feel like the setup requires too many dependencies <code>web-server</code>, <code>grpc-server</code> and <code>envoy proxy</code>.</p>
  
  <p>Is anyone successfully using <code>grpc-web</code> for production? Do we need all the dependencies including envoy?</p>