Auto Login enabled for public facing community?

I’m afraid the general answer is still largely the same as last time

The spec I was talking about is OpenID Connect Session Management. Unfortunately, that iframe-based solution is becoming increasingly less useful because many browsers are now blocking third-party cookies by default. It now only works reliably if your identity provider and Discourse have the same ‘origin’.

As @simonk said, depending on your identity provider it might be possible to implement something custom via a theme component, but I’m not aware of any general solution we could add to Discourse itself.

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