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Configure Browser To Trust Caddy Internal Tls Certificates

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The Caddy web server can auto-generate locally trusted internal TLS certificates. These are convenient for a development environment. But like self-signed certificates, your browser will complain that they’re not valid.


To make Google Chrome trust all certificates from the Caddy “authority”:

  • Copy Caddy’s root certificate from the server to your local computer. Mine is located in /usr/local/share/ca-certificates/ and symlinked to /etc/ssl/certs/ with the pattern Caddy_Local_Authority_-_2024_ECC_Root_145490142258935389386401433254531405431.pem.
  • Open Chrome Settings | Security | Manage Certificates.
  • Click on the Authorities tab.
  • Click on the Import button and select the PEM file to upload from your file manager.
  • Select the checkbox to “Trust this certificate for identifying websites”
  • Restart the browser: (chrome://restart).


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