jashkenas/backbone — pull request #3136 by aholmes (2014-04-24 20:32:01+00:00)
Title: Add an optional argument 'trailingSlashIsSignificant' to Backbone.Router...

... so application authors can determine whether their applications treats URIs with a trailing slash as a different resource than URIs without a trailing slash. Defaults to true. This option causes Router to set the 'routeTrailingSlashPattern' variable, which is added to the overall URIs matching regex. #848