ErrorEvent is not defined

[gjuoun]

Hello, I'm trying to use error handler, however I'm not able to use it

Can anyone help?

import { Application } from "https://deno.land/x/oak/mod.ts";

const app = new Application();

app.use((ctx) => {
  ctx.throw(500);// Uncaught ReferenceError: ErrorEvent is not defined
});

app.addEventListener("error", (evt) => {
  console.log(evt.error);
});

await app.listen({ port: 8000 });

Stdout:

[kitsonk]

You need to use Deno 1.0.0-rc3 or later.

[gjuoun]

It works. updating to the latest(1.0.0-rc3) solve the problem.
Thanks!