Digits Web Authentication Demo not working

I tried running http://ift.tt/1XH6bFI to get a feel on how Digits Web authentication works.

But every time I click the sign using phone, the prompt is this page.

I've already set the consumer key, secret, web url as noted in Fabric documents. The digits kit used was activated by creating an Android app. Consumer key and secret that were used in the demo were obtained from Fabric Digits Dashboard that's why I'm assuming that it's all good but it always prompts that something is wrong.

Anyone who moved on in this stage care to share their workarounds? Thanks!