306 is now unused.
306 is now unused.

Regarding http://tools.ietf.org/html/rfc7231#section-6.4.6:

> The 306 status code was defined in a previous version of this
> specification, is no longer used, and the code is reserved.

Thanks @jubianchi for the review!

vcgato29/Central,Metalaka/Central,vcgato29/Central,Metalaka/Central,Grummfy/Central,Grummfy/Central