CORS error on https://wild.open-wc.org/ preventing any results being shown

[LorenzKahl]

The website doesn't list any results - it appears to be a CORS error when accessing the data-source:

Access to fetch at 'https://custom-elements-api.cleverapps.io/get?current=0' from origin 'https://wild.open-wc.org' 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. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

GET https://custom-elements-api.cleverapps.io/get?current=0 net::ERR_FAILED