Lockdown-install.js errors

Hi, I’m getting a huge bunch of warning from lockdown-install.js. I don’t know what that script is, is it to do with the engine?. These are just warnings so nothing is affected, its just annoying.
Can anyone help?

Do you have metamask installed? build - What is causing the warning 'Removing intrinsics.%ArrayPrototype%.toReversed' in React? - Stack Overflow

Ah yes I do. That must be it then. Thanks