TypeError: Cannot set property 'pathname' of undefined

[abreksa4]

1. clone repo
2. Install line-for-line from INSTALL without noticeable error, lots of warnings ;)
3. Take this JavaScript: http://pastebin.com/ZLY90VnG and run it through http://www.atasoyweb.net/Javascript_Encrypter/javascript_encrypter_eng.php
4. Put in samples/sample.js
5. Run: python jsunpackn.py samples/sample.js -V

[nothing detected] samples/sample.js
        info: [decodingLevel=0] found JavaScript
        error: Error: unrecognized flag -f
                error: Try --help for options
                error:
                error: /home/abreksa/src/jsunpack-n/pre.js:396
                error:     location.pathname = String(this.href);
                error:                       ^
                error: TypeError: Cannot set property 'pathname' of undefined
                error:     at new my_location (/home/abreksa/src/jsunpack-n/pre.js:396:23)
                error:     at Object.<anonymous> (/home/abreksa/src/jsunpack-n/pre.js:402:16)
                error:     at Module._compile (module.js:456:26)
                error:     at Object.Module._extensions..js (module.js:474:10)
                error:     at Module.load (module.js:356:32)
                error:     at Function.Module._load (module.js:312:12)
                error:     at Function.Module.runMain (module.js:497:10)
                error:     at startup (node.js:119:16)
                error:     at node.js:902:3

On Ubuntu 14.04.1 x64