Article:
https://medium.com/@paul_irish/debugging-node-js-nightlies-with-chrome-devt…
tl;dr: In Node nightly (and Node 7, once it's released), `node --inspect
server.js` will enable interaction with Chrome's devtools for debugging,
profiling, heap snapshotting etc. Currently, this requires
https://github.com/node-inspector/node-inspector.
Gabriel