In Ask Question, when you click inside the body section, we can see the How to Format section in the side bar.
In the list of tips, the last line is:
► basic HTML also allowed
There still the URL is with
http:// only, where as the same URL is under the advanced help -> HTML is linked with
Clicking on the
http:// URL is redirecting to
https://, but for consistency the URL in the
basic HTML also allowed should be updated as
http:// URL is not yet updated in all the sites.
Screenshot for reference: