Dalek CLI not exiting after tests complete on Ubuntu

[alihen]

I've been having an issue with the Dalek CLI not exiting after tests have run on Ubuntu. After the test completes, it hangs for a few minutes and then throws a ERROR: Error: socket hang up and then exits the test.

Below is the output of the test:
Note: The test is being called on a remote host.

Running tests
Running Browser: Google Chrome
OS: Windows NT 6.1 SP1 x86
Browser Version: 37.0.2062.124

RUNNING TEST - "Express Test"
▶ OPEN http://www.example.com/
▶ WAITFOR
▶ OPEN http://www.example.com/express/
▶ WAITFOR
▶ CLICK #selector[value="137545"]
▶ WAITFOR
▶ WAIT 500 ms
✔ VAL Exists
▶ CLICK #selector
▶ WAITFOR Interrupted by timeout
▶ WAIT 500 ms
✔ TEXT exists
✔ EXISTS The button exists
▶ CLICK #button
▶ WAITFOR
▶ WAIT 1500 ms
✔ TITLE Page Reached
✔ 4 Assertions run
✔ TEST - "Express Test" SUCCEEDED
 4/4 assertions passed. Elapsed Time: 18.35 sec
//Delay of a couple of minutes
>> ERROR: Error: socket hang up
>> ERROR: Error: socket hang up

I also get an error in the Dalek remote host command prompt.

Starting session:...
Closing session:...
>>ERROR: connect ECONNREFUSED
>> ERROR: Error: socket hang up
//Delay of a couple of minutes
Closing session:...

I've tested this on Ubuntu 14.04 and 12.04.4 LTS and have had the same problem on both. The tests work fine on OS X.
There are quite a few WaitFor calls (for dom ready) - could this be the issue? Really hoping there would be a built in call for this.

Dalek CLI Version: 0.0.4
Dalek Version: 0.0.8

[asciidisco]

Phew, quite some effort to reproduce this. Maybe this is related to the way Dalek shuts down browsers in Windows environments. Could be the same bug as described here: dalekjs/dalek-browser-chrome#1