title: Angular $http.get to same host but different port fails with no meaningful error
body: <p>I'm running an Angular script that performs an $http.get(...) on a REST resource located at <code>http://localhost:7700</code>, but it's executing from a page served at <code>http://localhost:4400</code>. I'm not certain if this is the problem, but it results in the error() callback firing, with a status of 0, and nothing in the data parameter. Any ideas on why this would be happening?</p>