"InvalidStateError: The object is in invalid state" when mocking rest api

[Lespoir]

Prerequisites

• I confirm my issue is not in the opened issues
• I confirm the Frequently Asked Questions didn't contain the answer to my issue

Environment check

• I'm using the latest msw version
• I'm using Node.js version 18 or higher

Node.js version

v18.15.0

Reproduction repository

No Repo

Reproduction steps

Versions:

• "react-native": "0.71.11"
• "msw": "2.2.3"
• "undici": "5.22.0"

Setup:

• Polyfill file created with:

const { TextDecoder, TextEncoder } = require('node:util')

Object.defineProperties(globalThis, {
    TextDecoder: { value: TextDecoder },
    TextEncoder: { value: TextEncoder },
})

const { Blob } = require('node:buffer')
const { fetch, Headers, FormData, Request, Response } = require('undici')

Object.defineProperties(globalThis, {
    fetch: { value: fetch, writable: true },
    Blob: { value: Blob },
    Headers: { value: Headers },
    FormData: { value: FormData },
    Request: { value: Request },
    Response: { value: Response },
})

Steps:

• Add a rest handler like

server.use(
    rest.post(`/test`, () =>
      HttpResponse.json({}),
    ),
  );

• Create a test that checks the mock is called

Current behavior

Getting this error:

detail: Invariant Violation: InvalidStateError: The object is in invalid state.
          at next (/Users/davidavila/Documents/gg/core-mobile/node_modules/@mswjs/interceptors/src/utils/createProxy.ts:81:24)
          at Object.handler.get (/Users/davidavila/Documents/gg/core-mobile/node_modules/@mswjs/interceptors/src/utils/createProxy.ts:86:11)
          at onloadend (/Users/davidavila/Documents/gg/core-mobile/node_modules/axios/lib/adapters/xhr.js:101:17)
          at Timeout.task [as _onTimeout] (/Users/davidavila/Documents/gg/core-mobile/node_modules/jsdom/lib/jsdom/browser/Window.js:520:19)
          at listOnTimeout (node:internal/timers:569:17)
          at processTimers (node:internal/timers:512:7),

Expected behavior

Test should pass

[kettanaito]

Hey, @Lespoir. Thanks for reporting this. Please try out the new version of MSW, I think this has been fixed in the underlying dependency library. If the issue persists, please provide a reproduction repository. I cannot help here without having a code to dive in. Thanks.