What information was incorrect, unhelpful, or incomplete?
-> #297 (comment)
The FileSystemObserver demo wants display a "not supported" message on browsers that don't support that API (i.e. non-Chromium browsers), and has a test for this, but it doesn't work, because before the test the demo calls a different API that's not supported in Chromium. So the helpful message never gets shown.
What did you expect to see?
the message to be shown
Do you have any supporting links, references, or citations?
no
Do you have anything more you want to share?
No response