einaros/ws — pull request #168 by arlolra (2013-03-22 23:52:10+00:00)
Title: Expose bufferedAmount

http://www.w3.org/TR/2011/WD-websockets-20110929/

> The bufferedAmount attribute must return the number of bytes of application data (UTF-8 text and binary data) that have been queued using send() but that, as of the last time the event loop started executing a task, had not yet been transmitted to the network.