1. Why did my import fail with a CORS error?
CORS (Cross-Origin Resource Sharing) is a security feature that prevents websites from fetching data from other domains unless explicitly allowed. Many servers block these requests for security.
2. What kind of URLs work best?
Direct links to raw files on GitHub, public Google Sheets (published to web as CSV), or files on servers with permissive CORS headers work best.
3. Is my data secure?
Yes, the data is fetched directly by your browser and is never stored on our servers.