https://community.fortinet.com/fortigate-3/troubleshooting-tip-issue-with-case-sensitivity-in-domain-fronting-227077
Troubleshooting Tip: Issue with case sensitivity in domain fronting | Community
DescriptionThis article describes an issue in domain fronting related with a mismatch in case sensitivity between the SNI and host header.ScopeFortiOS 7...
troubleshootingtipissuecasesensitivity
https://policy.ufl.edu/policy/fronting/
Fronting – Regulation and Policy Hub
regulation and policyfrontinghub