Stream cancel handling

[Fractal-Tess]

Hello,

I would like to know a proper way to handle file streams that are canceled by either the server or the client.
Here is an example code

// Client
import { copy, readerFromStreamReader } from '../deps.ts'

console.log('Requesting file')

const res = await fetch('http://localhost:8888/api/v1/test')
const stream = res.body!.getReader()!
const file = await Deno.open('./out.mkv', {
  create: true,
  write: true,
  truncate: true,
  read: true
})
const reader = readerFromStreamReader(stream)
await copy(reader, file)

await Deno.close(file.rid)
Deno.exit(0)

// Server route
router.get('/test', async ctx => {
  log.debug('File requested')
  const file = await Deno.open('./in.mkv', { read: true })
  ctx.response.body = file
  ctx.response.status = 200
})

I did try to wrap the ctx.response.body with a try-catch, but it is not catching it.

Here is what I get in the console

INFO Running api server on 8888
DEBUG File requested
[uncaught application error]: Http - connection error: Connection reset by peer (os error 104)

    at async Object.respondWith (deno:ext/http/01_http.js:263:15)
[uncaught application error]: Http - connection error: Connection reset by peer (os error 104)

request: { url: "http://localhost:8888/api/v1/test", method: "GET", hasBody: false }
response: { status: 200, type: undefined, hasBody: true, writable: false }

    at async Object.respondWith (deno:ext/http/01_http.js:263:15)
[uncaught application error]: Http - connection error: Connection reset by peer (os error 104)

    at async HttpConn.nextRequest (deno:ext/http/01_http.js:80:23)
    at async serve (https://deno.land/x/[email protected]/http_server_native.ts:114:34)

Thank you for your time!