Sample Basic/LocalFiles does not work for me

When I press the button "Show Local Files" in the demo, nothing happens. Is my copy of the demo corrupted ?

We also see problems in Chrome, not in Edge Chromium.
What exact browser do you use?
Possibly a Chrome update caused a breaking change. We will investigate.

Its working on Chrome, but not on Brave (which is a clone of Chrome). Is it possible for it to detect that it has failed ? because its going to be an issue out there, I cant control the browser they use.