Protection from "undefined".
Protection from "undefined".

https://github.com/nordnet/cordova-hot-code-push/issues/85

nordnet/cordova-hot-code-push,davidovich/cordova-hot-code-push,mnewmedia/cordova-hot-code-push,limexcomputer/cordova-hot-code-push,mnewmedia/cordova-hot-code-push,nordnet/cordova-hot-code-push,davidovich/cordova-hot-code-push,limexcomputer/cordova-hot-code-push