CORS Tester

Use this little website to test if a URL is setup correctly to work with CORS.




If your CORS setup is not using a wildcard then this should be a domain that matches your AllowedOrigins


Shareable link:

Results

This URL will only work for specific domains.

What's that mean?

This url can only be loaded by pages that match https://infinitenovelty.com. If you're trying to load it from a different origin and it's not working, you'll need to change it so the access-control-allow-origin header is set to *.

Headers

These are the response headers received when making the request.

accept-ranges: bytes
access-control-allow-origin: https://infinitenovelty.com
cf-cache-status: DYNAMIC
cf-ray: 9adbaf51a72910ec-ORD
connection: keep-alive
content-length: 732532736
content-type: application/octet-stream
date: Sun, 14 Dec 2025 06:36:05 GMT
etag: "bca688cff8901d77164f486ca2cc0cd5"
last-modified: Mon, 20 Feb 2023 15:31:10 GMT
server: cloudflare
vary: Origin, Accept-Encoding

CORS tester was built by @mscccc. The code is available on GitHub. Sponsored by HTML/CSS to Image.