onUnhandledRequest event handler doesn't work (even after a restart)

Describe the bug

I work with CRA + msw.js and my worker is outputting a lot of warnings of unhandled requests. Naturally, It makes looking at the devtools a nightmare to look at…

Environment

• msw: 0.35.0
• pnpm: 6.19.1

Browser Version: 95.0.4638.69 (Official Build) (64-bit)

To Reproduce

Just register a worker with default CRA and you will get similar warnings of missing handlers for logo.png, manifest.json etc…

this is my browser.ts file:

import { setupWorker } from "msw";
import { handlers } from "./handlers";

export const worker = setupWorker(...handlers);

worker.start({
  onUnhandledRequest: ({ method, url }) => {
    if (!url.pathname.startsWith("/api")) {
      // do nothing..
    }
  },
});

// OR
worker.start({
  onUnhandledRequest: "bypass"
});

Expected behavior

I expect onUnhandledRequest to disable the default warnings that comes with msw (prefixed: [MSW] Warning: yada yada …) and show nothing instead.

Screenshots

[guyflax1234]

Ok, there is no bug at all. I had two versions of the worker.start() The version that I looked at was not called. I solved it while trying to reproduce it so you helped me anyway!

sorry for wasting your time 😃

[kettanaito]

Hey, @guyflax1234.

Could you please share a reproduction repository? I can’t replicate this issue on a fresh CRA+MSW setup using this:

// src/mocks.js
import { setupWorker } from 'msw'

export const worker = setupWorker()

// src/index.js
import { worker } from './mocks'
worker.start({
  onUnhandledRequest: 'bypass',
})

No warnings are printed into the console: