CORS Issue in WASM Build – Network Requests Blocked

[MascotWorld]

I'm building my app on WASM, but network requests fail due to CORS restrictions. The error message is:

Access to fetch at 'https://empty.net/api/v1/auth/signin' from origin 'https://df.empty.net' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

On Android, iOS, and JVM, everything works fine. How can I resolve this issue in WASM?