Use slice instead of substr to help IE8.
Use slice instead of substr to help IE8.

m4dz/backbone.subroute,davidosomething/backbone.subroute,ThiagoGarciaAlves/backbone.subroute,maoueh/backbone.subroute,kalley/backbone.subroute,BackboneSubroute/backbone.subroute,jrf0110/backbone.subroute,kalley/backbone.subroute,BackboneSubroute/backbone.subroute,m4dz/backbone.subroute,ThiagoGarciaAlves/backbone.subroute,thejameskyle/backbone.subroute