How to prefix-match path in oak router?

[ledlamp]

In express I serve folder to a path like this

app.use("/v/", express.static(process.env.DOWNLOADS));

In oak I try to do like this but it does not work, the route does not even get hit at all

router.get("/v/", async ctx => {
	await ctx.send({
		root: process.env.MEDIA_DIR
	});
});

If I put "/v/*" I get error: Uncaught (in promise) TypeError: Unexpected MODIFIER at 3, expected END so it seems glob * is not supported.

It seems the only thing I can do is /v/:uselessparam but then it will not match path like /v/foo/bar.

Is there seriously no way to make a route like /foo/ that matches all paths underneath like /foo/bar and /foo/bar/baz?????

[ledlamp]

so only way is to do as middleware outside of router

app.use(async ctx => {
	if (ctx.request.url.pathname.startsWith("/v/")) {
		await ctx.send({
			root: process.env.MEDIA_DIR,
			path: ctx.request.url.pathname.replace("/v/", "")
		});
	}
});

this makes messier code, why can't we have wildcard or something???