Can't press a button on mobile phone (both Android and iOS)

[dmxt]

I'm on mission to change the world for the good.

I ran the demo, it works just fine on Chrome on Mac (except for Safari)

But my main goal is to get it working on mobile phone, I tried both iOS and Android, Safari and Chrome, but the button is not clickable. It just stay on default blue state.

I ran a server, connected my phone on local address and ended up unable to click the button in order to get voice-to-text going.

What kind of code is causing this issue so should I look at to fix this issue?

Thank you.