The "tls-config" command:

Usage: fossil tls-config [SUBCOMMAND] [OPTIONS...] [ARGS...]

This command is used to view or modify the TLS (Transport Layer Security) configuration for Fossil. TLS (formerly SSL) is the encryption technology used for secure HTTPS transport.

Sub-commands:

show
Show the TLS configuration

remove-exception DOMAIN...
Remove TLS cert exceptions for the domains listed. Or if the --all option is specified, remove all TLS cert exceptions.