The data syncing is there, that bug is related to a particular issue of communicating with external hosts If your app and your CouchDB instance are on the same

The data syncing is there, that bug is related to a particular issue of communicating with external hosts If your app and your CouchDB instance are on the same host (either with a proxy or couchapps) then there is no issue, if the CouchDB instance you want to sync with is on a seperate host then you need to add CORS headers to data served from couch, this is a few lines change in nginx, I run a local proxy for development because its just more convenient