http://bugs.winehq.org/show_bug.cgi?id=58159
--- Comment #2 from Jeremy Newman jnewman@codeweavers.com --- I've fixed the redirect issue. This was an issue on the Fastly side of the CDN due to it redirecting all HTTP to HTTPS, which broke the AWS S3 url rewriting for Origin fetch.
The alternative was to fix the url rewrite in the VCL snippet, but I'm opting into allowing HTTP since apt still tends to default to HTTP, saving on the redirect traffic.
Cloudflare blocks should be reported to Cloudflare, not to us. That is a false positive on their end.