import { Application } from "https://deno.land/x/aleph@0.3.0-alpha.2/server/app.ts";
render custom 404 page.
Parameters
optional
url: RouterURL = [UNSUPPORTED]import { Application } from "https://deno.land/x/aleph@0.3.0-alpha.2/server/app.ts";
render custom 404 page.