I generally prefer to make the regex rule look for the hash signature, e g. `/\.[0-9a-f]{6}\./` rather than solely by file extension. That way if there's any fi

I generally prefer to make the regex rule look for the hash signature, e g. `/\.[0-9a-f]{6}\./` rather than solely by file extension. That way if there's any files that didn't get fingerprinted it won't cache it indefinitely.