google/closure-library — pull request #340 by ChadKillingsworth (2014-09-03 18:21:04+00:00)
Title: Allow XmlHttpFactory to be specified for goog.ui.ac.RemoteArrayMatcher.

IE 8 and 9 require use of the XDomainRequest object to support CORS requests. This change allows users to specify the XmlHttpFactory used for the XhrIo requests which enables support for IE8 and 9.

Alternatively, the `this.xhr_` property could be refactored and made public.