[Screenshot 2026-02-05 at 5.30.38 PM] My project is set up with supabase + supabase auth. I’ve been back and forth developing in v0 and locally. But now i have authentication implemented and in v0 i cant seem to get it working. I gotta open in a new tab. To be clear, I implemented the auth myself…

GPT5 says (I think its pretty convincing): What this warning really means The v0 / Vercel warning is not a bug in your code, but a limitation of the embedded preview: The embedded preview runs inside an iframe with security restrictions (cookies, storage, redirects, OAuth). When v0 detects auth…

have a read over this. might help [image] V0 Supabase Auth Installation Prompt v0 V0 Supabase Auth Installation Prompt You can paste this prompt directly into your V0 prompt to have V0 fully install Supabase login with Supabase’s latest best pract…

Yeah I use Supabase in v0 every day. Just use the auth installation prompt and it’ll set it all up for you! Thanks for the tage @heystu

I’m experiencing exactly the same issue discussed here with Supabase Auth in v0. In the embedded preview, I constantly get the banner: “Browser Restriction Detected , Found authentication libraries used in the generated code, which might not work as expected in the embedded preview due to browser …

Hey! You are doing everything right. However since the new release v0 has build in this warning on all kind of auth routes/methodes. To be 100% sure that auth works the way you want it, you are now being “forced” to open a new normal tab. I agree with you that this action maybe feels a bit weird and…

thank you. But this way doesn’t allow “fix free by v0”.

Did you have any luck with the prompt from Aaron. I use the same prompt and it makes a world of difference honestly. another trick is to just give the chat the link to the specific Supabase docs regarding the auth area you are having issues with. I ran into some auth issues a while ago around passw…

Getting Design Mode back is currently being worked on. It will stil work in older “pre update” chats, but current beta chats you just have to sit tight for a bit without design mode. But it is coming.

Thanks a lot for the tips and the update, really appreciate you taking the time to reply, and thanks to the v0 team for listening to users. I’ll try the Supabase docs approach and see if that helps. Good to hear Design Mode is being worked on. Thanks again for keeping us posted

Has anyone been able to get Supabase auth working in V0?

heystu (Sean) February 6, 2026, 10:03am 5

have a read over this. might help

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Has anyone been able to get Supabase auth working in V0?

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