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Browser console

TypeError: Failed to fetch

What it means
The browser tried to talk to your server or an external address and couldn't reach it at all.
Likely causes
  • Your local dev server (npm run dev) stopped running or crashed in the terminal.
  • The code calls a wrong URL or tries to call an external API directly from the browser instead of the server.
Prevention
Make external API and AI calls from Server Actions or Route Handlers on the server, never directly from the browser.

Copy for your agent

The browser shows `TypeError: Failed to fetch`. Check that the dev server is running, inspect the server terminal for errors, and move any external API call to the server.

Full help articleThe app shows a blank or error page on your computer

Last reviewed Nov 8, 2026