Next.js blank page after res.redirect()

Jun 29, 2021

Fix the blank page you get after calling res.redirect() in a Next.js API route on Vercel by switching to res.writeHead() with a 302 Location header instead.

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I had an API route and after responding to a form submit, the API called

res.redirect('/')

It worked great locally in development, but when I shipped it to Vercel, the redirect ended up to a blank page. The URL was correct, but it took a refresh to show the content.

Not sure why, but I fixed this by using res.writeHead() instead:

res.writeHead(302, { Location: '/' }).end()

The 302 Found HTTP code is a common way of performing URL redirection.

Tagged: Next.js · All topics

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