can't run on node 6.9.4

i run babel-node-debug and chrome browser pop up and then, the Debug page is not loaded.  Thefore, I enter  http://127.0.0.1:8080/?port=5858 on chrome browser.  A black message shows 'websocket_closed'  . Does this work on node 6.9.4  ; Alternatively, if I would use node --inspect how to display es6 codes while debugging?