turban/Leaflet.Sync — pull request #9 by jieter (2013-10-08 11:33:10+00:00)
Title: Fix `Uncaught TypeError: Cannot read property 'x' of undefined` + jshinting.

The `zoomend` listener was attached to `originalMap` every time new sync relation is added, but it's only needed once. Sorry for mixing with jshinting...
ref leaflet-extras/leaflet-providers#72