https://github.com/apache/incubator-cordova-js/blob/master/lib/common/plugin/FileTransfer.js#L18 http://docs.phonegap.com/en/1.5.0/phonegap_file_file.md.html#FileTransfer
I'm currently fixing https://issues.apache.org/jira/browse/CB-433 and want to know if I should handle this since it's not in the docs, or discard it. chunkedMode iOS is not handling it, I'll add a doc issue for it.
