Hi Francesco,
As your cornerstone app is requesting data from Orthanc on a different port, that causes a browser to make CORS requests. There 2 ways to fix this. You can configure nginx to serve both cornerstone and Orthanc on the same port and host. Or you can configure nginx to add the appropriate CORS responses https://enable-cors.org/server_nginx.html
Hope that helps.
James
James Manners • Director
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