Sorry mate, didn't realise you were using an Ipad. I was able to do it with both an Android tablet and an Android mobile, however didn't have any Apple devices handy at the time to test.
Try this app (Video & TV Cast for Chromecast) for your Ipad and let me know how you go:
https://itunes.apple.com/us/app/video-tv-cast-browser-for/id907405413?mt=8