TypeError: Request path contains unescaped characters #3

Hi

I cloned this repo and run the npm test command, and then occurred below error:

> browserstack-runner-sample@0.1.0 test /rcblpig1/browserstack-test/browserstack-runner-sample-master
> browserstack-runner

[TypeError: Request path contains unescaped characters.]
Invalid command.

I just changed the browserstack.json to configure username & access_key & proxy.

This issuse occured in Windows 7 Enterprise x64 and RHEL 5.11