Request stuck in pending state / promise never resolves

Environment

Name	Version
msw	0.35.0
node	14.17.6
OS	codesandbox & ubuntu 20.04

Request handlers

// Example of declaration. Provide your code here.
import { setupServer } from 'msw/node'
import { rest } from 'msw'

const server = setupServer()

server.listen({
  onUnhandledRequest: "bypass"
})

stripe.customers.update("customer_id", {
  name: "stephan",
  email: "[e-mail]"
}).finally(() => {
  // you'll never come here
});

Actual request

stripe.customers.update("customer_id", {
  name: "stephan",
  email: "[e-mail]"
}).finally(() => {
  // you'll never come here
});

Current behavior

Request is made, Stripe shows that there was a successful response, but the promise never resolves.

Expected behavior

Request should resolve

Screenshots

codesandbox

https://codesandbox.io/s/spring-dawn-3cht3?file=/pages/api/stripe.js

terminal

https://user-images.githubusercontent.com/1196524/137531832-6b5fb6c8-e4f5-4c0d-9a2f-f16f1698f48c.mp4

[kettanaito]

I’ve implemented the fix in https://github.com/mswjs/interceptors/pull/165 but currently experience a regression in one of the tests. Once it’s resolved, the fix will be merged.

It seems I’ve finally found a way to properly clone the IncomingMessage by piping it to a PassThrough stream in order to read its “data” twice: for the internal “response” event and for the arbitrary response event listeners that the request client (or developer) may attach.

[kettanaito]

The fix will propagate with the next update of the @mswjs/interceptors library. We’re currently working on a few bug fixes we’d like to include in that next release. I’d expect it to be released this month.