What type of issue is this?

Infrastructure issue

What is the issue?

#27723 was adding a new subfeature, with only Firefox supporting it, but although experimental was set to false, the linter did not complain about it.

See: #27723 (comment)

What behavior were you expecting?

I would have expected that the linter reports the wrong experimental status.

What version(s) of BCD is the issue present in?

• The current BCD release
• The current version of the main branch

Do you have anything more you want to share?

No response