Today I updated are composer dependencies and our app started to throw this exception:

https://dl.dropboxusercontent.com/u/3215457/exception--2016-02-24--13-59--3ca7ce7b19.html

The solution to fix it was to change the routerFactory like this:

http://screenpresso.com/=qHr2c