[BUG] Playwright with Yarn and type: module causes ENOTDIR

[DavidArchibald]

Context:

• Playwright Version: Version 1.24.2
• Operating System: Linux
• Node.js version: v18.3.0
• Browser: Not Applicable (any)

Reproduction Create project with:

yarn set version stable
yarn create playwright

At this point, running yarn run playwright test will succeed!

However, adding "type": "module" in the package.json will cause things to break with this error:

node:fs:1587
  handleErrorFromBinding(ctx);
  ^

Error: ENOTDIR: not a directory, stat `[path]/.yarn/cache/@playwright-test-npm-1.24.2-efa86d5947-3d24ae5957.zip/node_modules/@playwright/test/lib/experimentalLoader.js'
    at statSync (node:fs:1587:3)
    at tryStatSync (node:internal/modules/esm/resolve:165:13)
    at finalizeResolution (node:internal/modules/esm/resolve:398:17)
    at moduleResolve (node:internal/modules/esm/resolve:966:10)
    at defaultResolve (node:internal/modules/esm/resolve:1174:11)
    at ESMLoader.resolve (node:internal/modules/esm/loader:605:30)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:318:18)
    at ESMLoader.import (node:internal/modules/esm/loader:404:22)
    at initializeLoader (node:internal/process/esm_loader:71:49)
    at loadESM (node:internal/process/esm_loader:84:11) {
  errno: -20,
  syscall: 'stat',
  code: 'ENOTDIR',
  path: '[path]/.yarn/cache/@playwright-test-npm-1.24.2-efa86d5947-3d24ae5957.zip/node_modules/@playwright/test/lib/experimentalLoader.js'
}

Node.js v18.3.0

I seemingly have to add "type": "module" in order to run an unrelated package written using ESModules but it seems like the experimentalLoader is causing issues. I poked into the source to figure out what's going on and it seems to be happening in cli.js when NODE_OPTIONS is being set. I tried fixing it by setting PW_DISABLE_TS_ESM and PW_TS_ESM_ON but this simply made .ts files unusable as one might expect.

My guess is that the --experimental-loader flag doesn't play nice with the .pnp.cjs loader that recognizes how to deal with Plug'n'Play.

[georgiemathews]

Encountering this error as well when using type: module with Yarn 3.2.2

Wasn't fixed by upgrading to 1.25.1