Unable to Deploy the shopify app to vercel

Dev Platform
1

My problem is when i am trying to deploy the app to Vercel with some database like mongodb it fails. In localhost, it runs very smoothly but its showing microsoft defender error when i deploy that to vercel . Sometimes its doesnot showing . i just want to deploy that to vercel .

Built a Shopify Remix app using the official template.

  • Local dev (shopify app dev) works perfectly → app loads inside Shopify Admin iframe, Product Page extension also shows.

  • Deployed app to Vercel (frontend) + Neon Postgres (database).

  • Set environment variables in Vercel:

    • SHOPIFY_API_KEY, SHOPIFY_API_SECRET, SHOPIFY_APP_URL=https://chicagoprint-pros.vercel.app

    • SCOPES=read_products,write_products

    • DATABASE_URL (Neon connection string with ?sslmode=require)

    • SESSION_SECRET (32+ char random string)

  • Build succeeds on Vercel, no errors in logs.

  • Shopify Partner Dashboard App URL + Redirect URLs match Vercel domain.

The problem:

  • When I open the app from Shopify Admin → Apps → Chicago App, the iframe is completely blank.

  • Local dev works fine, but production deploy on Vercel does not render anything.

  • Vercel logs show requests hitting /auth/login and /app, but no visible UI.

  • No console errors inside Shopify Admin iframe.

What I’ve checked:

  • root.tsx includes addDocumentResponseHeaders (so CSP headers are set).

  • _index.tsx only redirects to /app.

  • auth.login.tsx and auth.$.tsx are correct.

  • app._index.tsx renders a Polaris <Page> (works locally).

  • Database migrations applied successfully on Neon.

Question: Why does the app render fine locally but show a blank page when deployed on Vercel + Neon?

2

Hi, I’d suggest posting some more info, any error logs etc. We have very little information to go on currently to attempt in helping you.

3

Hi Luke , Thanks i repost the the question again . please help me