how to fix the issue wss server get error:TLS handshake failed ?

HI all,
I started a WSS server for testing on macOS, and when I connect to this server in Safari and Firefox, I have to install the certificate in the macOS Keychain and manually set it to 'Trust' in order to succeed. If I don't manually set it to 'Trust', the WSS server reports an error: TLS handshake failed. How can I avoid having to manually set trust in the Keychain?