refer to this SO answer for more info http://stackoverflow.com/questions/44040154/ionic-inappbrowser-no-done-close-button-ios/44041272#44041272
Download nodejs from https://nodejs.org/en/download/current/ and install node and npm
$ sudo npm install -g ionic cordova
clone this repository and run npm install
Then, to run it in browser, use ionic serve
or
to run it in emulator/device
$ ionic cordova platform add ios
$ ionic cordova run ios
Substitute ios for android if not on a Mac.