How to fix ERR_TOO_MANY_REDIRECTS on custom github pages domain?

Question

So I had github pages set up with a custom domain without problem on namecheap a day ago. Then I tried switching to Https via github\'s newly added support for https on page

Answer 1

More info here: https://support.cloudflare.com/hc/en-us/articles/115000219871

The two typical causes of redirect loop errors are:

• Cloudflare SSL options that are incompatible with your origin web server’s configuration, and
• Page Rule misconfiguration.