Zabbix does not support {HOST.PORT} in item keys or in web scenarios

I have a zabbix item ssl-cert-check.py["\{HOST.HOST}","\{HOST.PORT}"], which I use to monitor certificate status of a website.

I also have another web scenario to monitor the website. In the URL I put "https://{HOST.DNS}:{HOST.PORT}

 

In zabbix proxy logs, I can see that zabbix cannot resolve {HOST.PORT}

 

It would be nice to support {HOST.PORT}.