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%2Fliens.vincent-bonnefille.fr&url=https%3A%2F%2Fisso.bonnebulle.xyz
This url can only be loaded by pages that match http://isso-dev.local, https://voyagesdanslessystemesobscurs.org https://liens.vincent-bonnefille.fr https://isso.bonnebulle.xyz. 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 *.
These are the response headers received when making the request.
access-control-allow-credentials: true, true
access-control-allow-headers: Origin, Referer, Content-Type, Content-Type, Accept, Authorization
access-control-allow-methods: HEAD, GET, POST, PUT, DELETE, GET, POST, PATCH, PUT, DELETE, OPTIONS
access-control-allow-origin: http://isso-dev.local, https://voyagesdanslessystemesobscurs.org https://liens.vincent-bonnefille.fr https://isso.bonnebulle.xyz
access-control-expose-headers: X-Set-Cookie, Date
cf-cache-status: DYNAMIC
cf-ray: 9eda7aa48ea7e88e-CMH
content-length: 108
content-type: text/html; charset=utf-8
date: Fri, 17 Apr 2026 09:42:20 GMT
server: cloudflare
CORS tester was built by @mscccc. The code is available on GitHub. Sponsored by HTML/CSS to Image.