new: Big Change, Add support for Extensions 😍

extension/html/a.js

@@ -0,0 +1,12 @@
+
+import * as a from "./rpc/extension_grpc_web_pb.js";
+const client = new ExtensionHostServiceClient('http://localhost:8080');
+const request = new GetHelloRequest();
+export const getHello = (name) => {
+  request.setName(name)
+client.getHello(request, {}, (err, response) => {
+    console.log(request.getName());
+    console.log(response.toObject());
+  });
+}
+getHello("D")