HTTP security
From MoodleDocs
In Moodle 3.4 onwards, the setting 'Use HTTPS for logins' (loginhttps) has been removed and instead there is a HTTPS conversion tool for converting embedded content to HTTPS.
Secure cookies only
It is recommended to use secure cookies only when serving over SSL. When not serving over SSL, the setting is ignored. In Moodle 3.1.2 onwards, the 'Secure cookies only' default setting is on.
See also
- MDL-55662 for removing the secure cookies only setting