How do I use the accelerometer mechanic on mobile?

Hello, has anyone here worked with accelerometer (in particular in Chrome) ?

I have well established the captors activation in my events. I want to have a character moving on the X axis according to the accelerometer on mobile phone (like Doodle Jump)

But when I test on mobile, it seems there’s no movement detected. I wonder whether there’s a permission topic ?

Could you help me ?

Thanks !