Angular application doesn't work on iPhone/Safari 5.1.7

Currently am developing a big project in AngularJS(version 1.3X), Bootstrap(3.3.1), animate.css and few other libraries. I do test my application on different devices via Google Chrome Developers mode and on few browsers like Google Chrome, Mozilla Firefox and Safari(for Windows7).

I also have possibility to perform tests on Android device and iPhone. For some strange reason my application seems to work on every device except for iPhone 5 with Safari 5.1.7(when using same Safari but on Windows7 it does work).

Has anyone before stumbled uppon similar problem?