Our Sophos XG (XGS4500 (SFOS 18.5.2 MR-2-Build380)) is blocking a website that has uses a wildcard certificate, but doesn't actually use a subdomain.
The site is https://nma.gov.au/av/endeavour/guugu-yimidhirr/ which has a wildcard certificate for *.nma.gov.au
Our Sophos firewall allows www.nma.gov.au but not nma.gov.au,
Chrome accepts that cert for both addresses when we are outside the firewall.
Can the firewall be configured to check certificates the same way browsers like Chrome do? Sophos also has trouble with some Intermediate certificates that browsers accept fine.
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