CORS issue with API v1.1

I’ve been using API v1.1 for some time to access build artifacts. Up until recently it was working fine, but from sometime around 1 week ago, there seems to be an issue with CORS, namely the reponse is rejected because
“Reason: CORS header ‘Access-Control-Allow-Origin’ missing”

The example api call is
which is working fine when accessed directly in browser, but when I’m trying to access the same path with a script from another website, there is a CORS error.
The respose headers are missing “Access-Control-Allow-Origin: *” definition, so it’s not possible to access data from the API.