Understanding the full implications of AUTH_REDIRECT_PROXY_URL

[jamestalmage]

The documentation seems to suggest that AUTH_REDIRECT_PROXY_URL and AUTH_SECRET are the only values that needs to be shared between the stable deployment and the preview deployment, but I'm guessing it can get more complicated than that.

• Do I need to configure the same providers in both?
• Do I need to pass the same provider secrets for both?
• Do I need to provide the same database and database secrets for both?
• When it comes to role based access control, does the code for extracting the role need to be implemented on the stable url, the preview or both (and does that differ based on if JWT or Database method is used).
• Do magic links forward to the stable url as well?

Obviously, most of this I could figure out with experimentation, and that's the road I'll head down if I don't get an answer here, but I think it would be helpful if the documentation just spelled it out.

[jamestalmage]

This was copied from #13087, which was autoclosed.