Hi @wdfee,
Thank you for reaching out and for providing such detailed information about the issue, it is very helpful.
You are absolutely right that this is a mixed content issue. Even though your site runs on SSL, the image thumbnail URLs are being generated with “http” instead of “https”, which causes browsers with strict SSL settings to block them from loading.
The good news is that this is a common issue and straightforward to resolve. The root cause is typically that the WordPress site URL or the image URLs stored in the database still contain “http” references. To fix this, please follow the step by step instructions in our documentation here: https://wpastra.com/docs/mixed-content/
The guide covers how to update all “http” references to “https” across your database, which should resolve the thumbnail loading issue in the Image Gallery block completely.
Please give it a try and let us know how it goes.
Have a nice day!
Thread Starter
Fee
(@wdfee)
Thank you so much for your quick reply!
Yes, you’re right.
I’m surprised because my site URL is defined as “https” in the database and in the wp-config file (though in the wp-config file it uses a conditional variable), and this has never happened before with this configuration. In the past, images were always uploaded and saved via https when the site URL was defined that way and the server settings were configured to enforce SSL. Perhaps this behavior in WordPress has changed in general at some point.
So I’ve now removed the conditional variable from wp-config and am using only https in the defined constant. (Of course, I’ve also updated the incorrect URLs in the database.)
I’m leaving this post here for anyone else who might run into this issue.
Have a nice day!
