Outputting the schema links as http is actually correct, as that’s the canonical url for them (if you view https://schema.org/ImageGallery).
The URL listed is simply a unique identifier for the type, which is consistent between all sites, it doesn’t need to be SSL and shouldn’t negatively impact upon your sites SSL ability/score/etc as it shouldn’t be considered an insecure resource being embedded.
Can you elaborate on the actual problem you’re seeing? Have you just noticed these links being http, or is a tool or browser throwing a warning about it?
That all being said, I believe you’ll find the schema.org references are coming from Jetpacks Tiled Gallery option rather than from Gutenbergs gallery functionalities: https://github.com/Automattic/jetpack/blob/master/modules/tiled-gallery/tiled-gallery/templates/carousel-container.php#L17
thank you for your reply. It is the browser throwing warnings about the page not being completely SSL secure. When I look at the raw page source, those are the only links that are http: vs https.
So I am confused then what may be causing the failure.
Hiya,
The mixed content warning is coming from the image used in your header, it appears to be set by a tool for customizing CSS in your sites theme, specifically the following:
.header-classic #headerwrap, #headerwrap {
background-image: url(http://wimberleyartsfest.com/wp-content/uploads/2018/11/Sun-Ripened-Pears-with-copy.jpg);
}
THANK YOU. Searched for an hour and couldn’t find that.