Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread: CentOS2Alma discussion
Let me solve out your entire problem of it. The main issue is not activating the SSL. If your hosting support SSL then you just have to download the Really Simple SSL plugin and activate it. Your issue will be solve easily. Then you site will be redirect from HTTP to HTTPS.