Cannot mount more than one subapp on the same path

[v1rtl]

Description

When trying to request a route from the second subapp mounted on the same path, it returns 404.

This happens because the first subapp responds with 404 (e.g. calls no match handler) and therefore doesn't switch to the next app, resulting in 404 even though the route is present in another app.

Code

import App from 'polka'

const router = App()
router.get('/upload', (req, res) => res.end('upload'))

const router2 = App()
router2.get('/product', (req, res) => res.end('product'))


const app = App()

app.use('/api/v1', router, router2)

app.listen(3000, () => console.log(`Started on :3000`))

Expected result

$ curl localhost:3000/api/v1/product
product

Same code but with Express v4 returns the expected result.

Actual result

$ curl localhost:3000/api/v1/product
Not Found

Info

• polka: 1.0.0-next.11
• Node.js: 15.8
• uname -r: 5.10.15-1-MANJARO