A few months ago, https support was enabled for my GitHub Page, however since yesterday they now serve an expire certificate and the "Enforce HTTPS" option is grayed out. So it seems support for it was suddently removed.
This is quite a major issue for me as I've changed all the links everywhere to point to this https domain and this is now removed without warning. Any idea how to fix this issue?
For me it says the following, so maybe they are updating certificates and then we will have this option back and hopefully it'll be prechecked.
Enforce HTTPS — Not yet available for your site because the certificate has not finished being issued. Please allow 24 hours for this process to complete.