6 result(s) for "No 'Access-Control-Allow-Origin' header"
Your app makes calls to an API (its own backend, Supabase, or a third-party service) and those calls fail. You see errors in the console like 500, 403, 404, ...
API requests fail with CORS error: 'Access-Control-Allow-Origin header missing'. The browser blocks requests to a different domain. Your frontend is on one d...
After Cursor refactored your API server, requests from the frontend are blocked by CORS errors. The browser blocks responses due to missing Access-Control he...
Your Lovable app either blocks legitimate requests with CORS errors or is configured with overly permissive CORS settings (Access-Control-Allow-Origin: *) th...
Your app shows broken image icons, placeholder rectangles, or blank spaces where images should be. Image uploads might fail, or previously working images sto...
You've configured a third-party API integration in your Base44 app (such as connecting to Stripe, SendGrid, Airtable, or a custom REST API), but the integrat...