CORS policy for API data download

Hi all,

It would be great to be able to retrieve ECMWF data for analysis in JupyterLite. At the moment I get CORS errors and other download problems. I opened an issue here: Accessing CDS API from a WASM/JupyterLite context · Issue #155 · ecmwf/cdsapi · GitHub . Any ideas or experience with this problem? What is the current CORS policy on such downloads?