WebEngineView mute

[BuzzLEitinho]

Hello

I want to be able to mute a website.
I tried several of them, like youtube videos, or this http://www.szynalski.com/tone-generator/ with no success at all

I'm using WebEngineView and, according to documentation:
http://doc.qt.io/qt-5/qml-qtwebengine-webengineview.html
I use audioMuted:true with several websites, and I find no differences between setting it to true or false in different websites. So I'm wondering what does this property do.

So, how can I mute a website?

Thank you