router.history.previousLocation undefined at ensureConfigured() resolution.

[MarkoIvanetic]

I'm submitting a bug report

Library Version:
1.0.8

Operating System:
Windows 10

Node Version:
6.10.2

NPM Version:
3.10.10

JSPM

Browser:
Chrome 58.0.3029.110 (64-bit)

Language:
JavaScript

Current behavior:
router.history.previousLocation is undefined at time ensureConfigured() is resolved.

Expected/desired behavior:
Since I'm getting my routes via http I need to ensure refresh is working properly. I have one fallback route which is used while I get my routes and build the router. I expected to use ensureConfigured()
to navigate to previous location if it existed in case of refresh.