Polymer/URL — pull request #9 by jokeyrhyme (2014-09-25 23:50:13+00:00)
Title: fixes #2 by implementing the `origin` property

I've implemented the `origin` property, per my reading of the specifications and double-checking this against what has been implemented in Chrome.

I have not written tests for this, as the current tests are a little confusing. I'm willing to go back and do this if you feel this is a strict requirement.