LanguageClient onRequest isn't being called

Bug Reports
4

I saw recently that Nova fixed a bug with LanguageClient to allow extensions to implement custom LSP requests. I can now see that my code inside of the handler for onRequest is being called but it seems that what I return does not get sent in the request’s response.

My code

I can see my debug statements being called in the extension console, but it seems to always pass null back in the response?

client.onRequest("custom/schema/request", ([uri]: [string]) => {
  debug("custom/schema/request", uri);
  const editor = nova.workspace.textEditors.find(
    (e) => e.document.uri === uri
  );
  if (!editor) return [];

  const text = editor.document.getTextInRange(
    new Range(0, editor.document.length)
  );

  const apiVersion = /^apiVersion: +(\S+)$/m.exec(text);
  const kind = /^kind: +(\S+)$/m.exec(text);

  if (!apiVersion || !kind) return [];

  debug("custom/schema/request", [apiVersion[1], kind[1]]);
  return [{ uri: "kubernetes", name: kind[1], description: apiVersion[1] }];
});

client.start();

client.sendNotification("yaml/registerCustomSchemaRequest");

The request

{"jsonrpc":"2.0","id":1,"method":"custom/schema/request","params":["file:///Users/rob/dev/nova/yaml/examples/ingress.yml"]}

The response

{"jsonrpc":"2.0","method":"yaml\/registerCustomSchemaRequest","params":null}Content-Length: 38

{"jsonrpc":"2.0","id":2,"result":null}

Also, should the ids match up?