`@wordpress/e2e-test-utils-playwright` gives error "Stripping types is currently unsupported for files under node_modules"

[anomiex]

PR #78237 changed the package from exporting transpiled JS to exporting source typescript directly. This presumably works within your monorepo, but in ours it makes our tests fail with errors

Error: Stripping types is currently unsupported for files under node_modules, for "/home/runner/work/jetpack/jetpack/node_modules/.pnpm/@wordpress+e2e-test-utils-playwright@1.48.0_@playwright+test@1.60.0_@types+node@24.12.3/node_modules/@wordpress/e2e-test-utils-playwright/src/index.ts"

Node's documentation on the type stripping feature states:

To discourage package authors from publishing packages written in TypeScript, Node.js refuses to handle TypeScript files inside folders under a node_modules path.

[anomiex]

cc @jsnajdr

[jsnajdr]

Node.js refuses to handle TypeScript files inside folders under a node_modules path.

Yes, and Playwright also refuses to transpile node_modules with its internal esbuild-based pipeline, so the TS sources trickle down to Node 🙁 I fixed the package in trunk, it will be part of the next Gutenberg release. Or an earlier bugfix release if I figure out how to do it without errors.

[justlevine]

For folks working around this downstream, we also had to use "overrides" to explicitly pin the version used by @wordpress/scripts, since the minimum version was bumped there without a breaking version bump.

[jsnajdr]

The fixed @wordpress/e2e-test-utils-playwright package is now published as version 1.48.1. You can once again install the latest version.