failing async test ends in timeout instead of go to catch clause

[sombriks]

I have some async tests and everything goes ok except when i get some assertion failing.

This is very similar to the issue described here.

For example, the bellow snippet dies in timeout because the content-type is different to the expected:

import test from 'ava'
import request from 'supertest'

import { app, database } from './main.js'

// other tests

test('should get htmx browser script', async t => {
  try {
    const result = await request(app.callback()).get('/htmx.js')
    t.regex(result.header["content-type"], /javascript/)
    t.is(200, result.status)
  } catch (e) {
    t.fail(e.message)
  }
})

But first i got the timeout and only then i get the message regarding the failing regex match:

Any guidance on how to avoid timeout is welcome. The sample code, ava version and everything else is in this repo.