New Supabase tables need an explicit grant in Next.js
By ShipSecurely Editorial · Updated · How we make these guides
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The 42501 appears in the browser when a client calls supabase-js with the publishable key. Changing the Next.js route will not add the missing grant.
Fix for Next.js
The 42501 appears in the browser when a client calls supabase-js with the publishable key. Changing the Next.js route will not add the missing grant. Fix the SQL, then redeploy only if the app was catching that error and hiding it.
The five-minute check, the other platforms, and the agent prompt are on the full guide. More Next.js fixes are on the Next.js page.