Use this little website to test if a URL is setup correctly to work with CORS.
Shareable link: https://cors-test.codehappy.dev/?method=get&origin=https%3A%2F%2Fsulozor.github.io%2F&url=https%3A%2F%2Fcdn.poe2db.tw
It does not have the access-control-allow-origin header set to *. Without this header, requests from other domains cannot be made to it via a users browser.
If you have access to the server for the URL, you'll need to modify it to add the access-control-allow-origin header. If you do not have access, you'll need to upload the file somewhere else.
These are the response headers received when making the request.
cf-cache-status: BYPASS
content-type: text/html; charset=iso-8859-1
date: Mon, 26 Jan 2026 00:12:02 GMT
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=nvuAm9Uhqa1LI1uL6RzLeK5vT56gVHp952WB3bjdfvzZ2lu2kwCqIJKCp5eXNr4oPMMzKz8JemKGhcDWTFfldwLai8bfE7yzWebQlfrbiDVYi9%2FVbNVk3o8%3D"}]}
server: cloudflare
transfer-encoding: chunked
vary: accept-encoding
CORS tester was built by @mscccc. The code is available on GitHub. Sponsored by HTML/CSS to Image.