Can't request media on the iPad ?

Hello,

I have an iPad air 2,

and I'm using C2 b210

I'd like to request media (microphone) on my iPad.

It works nice on PC, but when I test it on the iPad (ios 8) nothing happens (no request)

I've checked the settings, Chrome and Safari on my iPad have allowed access to the microphone.

here is the Capx test: a button to push to request media (mic) and when approved, the text says "Mic OK"

https://db.tt/RgD0GEhA

Any solution/comments ?

Thanks,

Stéphane