Troubleshooting: broken SSL warning

The local Docker Compose stack serves https://eventsourcerer.docker.localhost with a certificate signed by the EventSourcerer development Certificate Authority. If your browser shows a "Not secure" or NET::ERR_CERT_AUTHORITY_INVALID warning, add the EventSourcerer CA to your operating system's trusted authorities and restart your browser.

Per-platform guides

• macOS — Add certificates to a keychain using Keychain Access (import the CA into the System keychain and set it to Always Trust).
• Windows — Install a trusted root certificate into the Trusted Root Certification Authorities store.
• Linux (Debian/Ubuntu) — Install a root CA certificate in the trust store (copy the CA to /usr/local/share/ca-certificates/ and run sudo update-ca-certificates).
• Linux (Fedora/RHEL) — Using shared system certificates (place the CA in /etc/pki/ca-trust/source/anchors/ and run sudo update-ca-trust).
• Firefox uses its own trust store — Setting Certificate Authorities in Firefox.

After importing the CA, fully quit and reopen your browser, then revisit https://eventsourcerer.docker.localhost.