'Get access token?' link broken, generates the following error:

>VM2649:3464 Uncaught channelUrl must be under the current domain  
>r @ VM2649:3464  
>(anonymous function) @ VM2649:3740  
>n.event.dispatch @ VM2649:8  
>r.handle @ VM2649:8

Running on chrome, Version 49.0.2623.110 m

Works only when clicking it on `http://meta.stackexchange.com/` - If this is intended, maybe show a warning or only display the link when on meta.stackexchange.com