WebXRPolyfill is not defined

I just started with Playcanvas and the editor for XR.Why is the default “hello world” VR experience PlayCanvas 3D HTML5 Game Engine not working? I use Meta Link, Apple Vision Pro and even the Meta Chrome extension, and all give this Polyfill error.

I’ve just made a quick clone of the same starter kit, and it launches as supposed to.
I do recommend not to use WebXR polyfill nowadays.