Docker beta for mac and xdebug not working

xdebug was working with docker toolbox but doesn't work with docker beta.

How should my settings look?

My website is accessible at www.site.com:881/

docker-machine ip = 192.168.99.100

docker inspect container_id :

   "Gateway": "172.17.0.1",

   "IPAddress": "172.17.0.2",

xdebug config:

xdebug.remote_enable=1

xdebug.remote_autostart=1

xdebug.remote_connect_back=1

;xdebug.remote_port=881

xdebug.remote_log=/tmp/php5-xdebug.log

xdebug.idekey=PHPSTORM

;xdebug.remote_host=localhost

I tried a lot of variations of those settings.

Xdebug wizard shows everything fine.

tried: sitename.com:881?XDEBUG_SESSION_START=PHPSTORM and still nothing.

Any help?

Thanks!