This web request is acceptible anonymously. I can enter it into postman, or into my web browser and it will return the needed CSV file. It will not complete in PowerBI.
The request is from AppSflyer and the API works fine in any other platform with this request. This was also working BEFORE the November update. The URL should request a CSV. If I just paste it into my browser I get the CSC that I need. Because of this I will not be able to use PowerBI for APIs.