About a month ago I installed Arrowchat 1.7.1 and just recently updated to 1.7.2. I have yet to see the Facebook integration work.
The majority of the time, I see the following error in the Console on Chrome:
Uncaught SyntaxError: Unexpected token \ all.js:29
all.js is pulled from the Facebook servers by Arrowchat, and from what I've found online, the cause of this is either a bad implementation of the Facebook Javascript API, or Facebook updating their code. However, I have yet to see it work once, so I don't believe it is an issue with Facebook.
The documentation regarding how to setup the app on Facebook is outdated and no longer reflects the proper configuration pages on Facebook, but I believe I have gotten it as close as I possibly could. When I click "Connect with Facebook", the first time will prompt me for normal app permissions, but it doesn't actually appear to connect and the "Connect with Facebook" option remains.
If someone could provide assistance with this so that I can get the Facebook integration working, it would be appreciated, as that feature was the primary reason for my purchase.