https://rtfd.io/ SSL broken

[webknjaz]

Details

• Read the Docs project URL: https://rtfd.io/
• Build URL (if applicable):
• Read the Docs username (if applicable):

Expected Result

Browser follows redirect, as in case of http://

Actual Result

Browser shows a scary red warning to the user.
Details reveal the following:

This server could not prove that it is rtfd.io; its security certificate is from *.readthedocs.org. This may be caused by a misconfiguration or an attacker intercepting your connection.

Clearly you'd want to serve a correct certificate or disable listening to 443 for that domain configs.

[davidfischer]

This is a duplicate of #328.

We are working toward a 5 step process toward HTTPS everywhere on Read the Docs. Here are the steps: #3282 (comment). Here is a PR for step 1 of the process: #3987.