Stream can't handle exceptions

[macabeus]

What version of Elysia is running?

^1.2.7

What platform is your computer?

Darwin 24.1.0 arm64 arm

What steps can reproduce the bug?

Run this test, written based on test/response/stream.test.ts:

it('handle stream with exception', async () => {
  const expected = ['a', 'handled']

  const app = new Elysia().get(
    '/',
    async function* () {
      yield 'a'
      await Bun.sleep(10)
      throw new Error('My Dummy Error')
    },
    {
      error({ error }) {
        return 'handled'
      }
    }
  )

  const response = await app
    .handle(req('/'))
    .then((x) => x.body)
    .then((x) => {
      if (!x) return

      const reader = x?.getReader()

      let acc = ''
      const { promise, resolve } = Promise.withResolvers()

      reader.read().then(function pump({ done, value }): unknown {
        if (done) return resolve(acc)

        expect(value.toString()).toBe(expected.shift()!)

        acc += value.toString()
        return reader.read().then(pump)
      })

      return promise
    })

  expect(expected).toHaveLength(0)
  expect(response).toBe('ahandled')
})

What is the expected behavior?

I expected that error would handle the exception.

What do you see instead?

The error handler is never called, and the connection isn't closed properly.
On Postman, I see this error:

name: "Error"
code: "HPE_INVALID_CHUNK_SIZE"
message: "Parse Error: Invalid character in chunk size"

and then the connection is closed.