angular/angular.js — pull request #10113 by caitp (2014-11-18 21:29:08+00:00)
Title: fix($http): return empty headers, ignore properties in Object prototype

(TESTING FOR MERGE)

Fix response headers with an empty value Empty response header values are legal
(http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html).

The headers getter fn will now only return null if the header property is not an own property.

Closes #7779