Thats great, thank you for that.
Can I ask if you have tried to install your Theme on a site with HTTPS yourselves, on a domain that starts with https://www.mysite.com ? It would be super useful if you could that to install the theme on a clean wordpress installation on a site like that (just like I did), and test the admin, and also run the site with Chrome Developer Tools active, and look for all error messages that pops up.
I think all of us clients would ber very grateful for that!
Thank you in advance!