node-notifier doesn't seem to work within a tmux session, while it works just fine outside of tmux.

node-notifier simply never responds, have to kill the process.

Works outside tmux

Locked up inside tmux

Any clues as to why?

• OSX Yosemite 10.10.4 (14E46)
• iojs 2.3.1
• tmux 2.0

Possibly related #47