Woes of Cloudflare SSL
I recently switched tweekly.fm over to serve as SSL via Cloudflare and for the most part, this has been a good transition for most people. There have been the odd reports of people having issues though. I looked into this a bit more and it comes down to the types of certs stored in some phones and browsers – I don’t think they’re out of date per-se, but I don’t think they support a certain cipher, which is what makes them fail.
There’s some good information over on this blog post.