Pointer Lock does Not Work on Android Browsers (official demo)

Question

This is the online demo suggested by MDN:

1. https://mdn.github.io/dom-examples/pointer-lock/

It works on desktop, but not on mobile (Chrome, Edge, FF). Meanwhile, the pointer lock API is listed as widely supported on mobile: https://developer.mozilla.org/en-US/docs/Web/API/Pointer_Lock_API

more demos:

2. Quake 3 WebGL demo http://media.tojicode.com/q3bsp/

3. http://www.smartjava.org/examples/pointerlock/

I implemented it myself too, and when I used JSON.stringify(e) to read the contents of the error event, I got: '{isTrusted:true}'

UPDATE: I used a more complex function to serialize the whole event object, so after adding the suggested by MDN event listeners:

document.addEventListener('pointerlockerror', lockError, false);
document.addEventListener('mozpointerlockerror', lockError, false);

and

function lockError(e) {
  serializeEvent(e)
}

I got from the serialize function:

UPDATE #2: I included FF as it doesn't work either, it just doesn't raise an error, while it follows pointer erratically (at high speed), without locking it and while firing the pointerlockchange event!