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Error: supabaseUrl is required — How to Fix It After Deploy
Your Supabase app works locally but shows a white screen in production with "supabaseUrl is required". Here's how to fix your environment variables.
6 min readSupabaseVercelFixesBlank screen
Exposed API key in your Lovable app — what to do now
A secret key (OpenAI, Stripe, Supabase service_role) ended up in your app's public code. Which keys are actually dangerous, how to revoke each one, and how to move the call to the server.
Lovable app showing a blank white screen — how to fix it
Your Lovable app opens to an empty white page. Here's how to find the real error in two minutes and fix the usual causes: missing env vars, a bad change, a paused Supabase project, stale files.
6 min readLovableFixesBlank screen
Lovable Custom Domain Not Working? How to Fix It
Stuck on Verifying, Offline or an SSL error? Fix your Lovable custom domain step by step: DNS records, Cloudflare, AAAA and CAA records.
Supabase "Failed to fetch" error — causes and fixes
"TypeError: Failed to fetch" means the browser never got an answer from Supabase. Here's how to find out why in a few minutes, and fix the usual causes one by one.
Supabase project paused — how to restore it and stop it happening again
Supabase pauses Free plan projects after a week of low activity. Here's what that does to your app, how to restore the project step by step, and your real options for keeping it awake.
Vercel 404 NOT_FOUND on Page Refresh: How to Fix It
Your Vite or React app works until you refresh a page, then Vercel shows 404: NOT_FOUND. Here's why it happens and the one-file fix.
Vercel site down? How to tell if it's you or Vercel
Your site on Vercel stopped working. A five-minute routine to tell a Vercel outage from a problem in your deploy, domain or code — and how to get back online fast with a rollback.
Why is my Bolt.new app not working after deploy?
It worked in Bolt's preview, then broke once it was live. The usual reasons — environment variables, auth redirect URLs, routing, build settings — and how to fix each one, step by step.