If a flipbook is hosted on a secure website (https://), it cannot display web pages that are added to the ‘webpage’ feature, if they are hosted on an insecure website (http://).
You cannot load a website from an insecure site to a flipbook on a secure site
You can load a website from an secure site to a flipbook on a secure site
You can load a website from a secure site to a flipbook on an insecure site
You can load a website from an insecure site to a flipbook on an insecure site
