[internal] chromium headed on macOS ends up in worker teardown timeout error

[mxschmitt]

Worker teardown timeout of 30000ms exceeded while tearing down "createUserDataDir".

Failed worker ran 275 tests, last 10 tests were:
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:42:1 › context.addCookies() should work
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:64:1 › context.clearCookies() should work
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:83:1 › should(not) block third party cookies
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:120:1 › should support viewport option
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:1[27](https://github.com/microsoft/playwright/actions/runs/3292818490/jobs/5428636457#step:9:28):1 › should support deviceScaleFactor option
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:132:1 › should support userAgent option
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:142:1 › should support bypassCSP option
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:149:1 › should support javascriptEnabled option
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:160:1 › should support httpCredentials option
[chromium] › tests/library/defaultbrowsercontext-1.spec.ts:167:1 › should support offline option
························×···········°·····
Worker teardown timeout of [30](https://github.com/microsoft/playwright/actions/runs/3292818490/jobs/5428636457#step:9:31)000ms exceeded while tearing down "createUserDataDir".

Failed worker ran 1 test:

It hangs here:

playwright/packages/playwright-core/src/server/page.ts

Lines 610 to 611 in 7ae447e

	if (!runBeforeUnload)
	await this._closedPromise;

We never get Target.detachedFromTarget so it does not end up in here:

playwright/packages/playwright-core/src/server/chromium/crBrowser.ts

Lines 201 to 221 in 7ae447e

	_onDetachedFromTarget(payload: Protocol.Target.detachFromTargetParameters) {
	const targetId = payload.targetId!;
	const crPage = this._crPages.get(targetId);
	if (crPage) {
	this._crPages.delete(targetId);
	crPage.didClose();
	return;
	}
	const backgroundPage = this._backgroundPages.get(targetId);
	if (backgroundPage) {
	this._backgroundPages.delete(targetId);
	backgroundPage.didClose();
	return;
	}
	const serviceWorker = this._serviceWorkers.get(targetId);
	if (serviceWorker) {
	this._serviceWorkers.delete(targetId);
	serviceWorker.didClose();
	return;
	}
	}

So far its only reproducible on GitHub Actions with the following command:

npm run test -- --headed --project=chromium --reporter list --repeat-each 50 --workers 1 ibrary/defaultbrowsercontext-1.spec.ts:167:1