JSONPath contains verbiage that allows for an empty array to be returned in the case that nothing was found, but the primary return in these cases is false.

Your problem is that you were returning the rejected loginDaoCall, not the promise where the error was already handled. loginApi.login(user, password) did indeed return a rejected promise, and even while that was handled in another branch, the promise returned by the further .then() does also get rejected and was not handled.