Board Thread:Technical Updates/@comment-22224-20180305223805/@comment-5811199-20180306074350

Andrewds1021 wrote: I am not sure I understand the HTTPS thing. Aren't images specified by full URL? How, then, do you "update" the CSS to reference HTTPS? Do you have some bot that searches the contents of every CSS page and corrects URLs that don't use HTTPS? I assume it is a simple replace of any mentions of  with. Not quite right, see this. If an image is from a HTTP site, then regardless of whether the site itself is HTTPS or not, it's still considered not secure. You can read more about it on Google Developers' article on mixed content.