How to apply Firewall Rule for 2nd level subdomain

Hi, I want to apply a Firewall rule for my 2nd level subdomain but I can’t get it to work, it only works with only 1 subdomain. For example,

test1.example.com Firewall works test2.test1.example.com Firewall didn't work

Here is my rule expression

(http.host eq "test2.test1.example.com" and not ip.src in {my ip here})

The expression is all right (even though it limits it to that particular hostname and does not apply to test1 any more).

Assuming you are talking about HTTPS, you will be probably rather running into this issue

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