Is the HTTPS only setting required for the iOS app to function?

[jbrooksga]

[Advanced Users] Enabled secure (HTTPS Only) cookies in settings. This should only be done if you only access your server over a HTTPS connection and will restrict logins to HTTPS only. Note if you enable this you will not be able to sign in over an insecure (HTTP) connection to turn if off.

When I have HTTPS enabled on the Apache Proxy Pass, the site responds to the browser requests correctly. However the iOS client reports an SSL error immediately after the username and password is entered. Is the setting mentioned above required?

Note that I used the exact parameters for the client parameters shown in the setup instructions.