TypeError: Cannot read properties of undefined (reading 'inaccessibleByURL') in `_updateURL`

[johanrd]

TypeError: Cannot read properties of undefined (reading 'inaccessibleByURL')

router.js/lib/router/router.ts

Lines 669 to 675 in 9320c7b

	for (let i = routeInfos.length - 1; i >= 0; --i) {
	let routeInfo = routeInfos[i];
	merge(params, routeInfo.params);
	if (routeInfo.route!.inaccessibleByURL) {
	urlMethod = null;
	}
	}

Stack trace from sentry:

[amk221]

Also started seeing this when enabling splitAtRoutes in an Embroider app