Images not loading in the lower part of the page in my browser (at wordpress.com)

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Discussion Overview

The discussion revolves around issues with images not loading on a specific webpage hosted on WordPress. Participants explore potential causes and solutions related to browser behavior, lazy loading, and mixed content warnings.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant reports that images lower down on the page do not load, despite valid URLs and the ability to view them in a new tab using Dev Tools.
  • Another suggests trying a different web browser or rebooting the system, mentioning successful exports as PDF and webarchive on MacOS.
  • A participant using Firefox and Chrome on Ubuntu states that images load fine, noting that only YouTube video images are lazy loaded and mentions a mixed content warning related to an insecure element request.
  • Concerns are raised about blocked resources in Firefox due to OpaqueResponseBlocking and content blocked by the µBlock Origin extension.
  • One participant acknowledges receiving the mixed content warning but does not believe it is related to their specific issue.

Areas of Agreement / Disagreement

Participants express differing experiences with image loading across various browsers and operating systems, indicating that the issue may not be universal. No consensus on a single cause or solution is reached.

Contextual Notes

Participants mention potential issues with lazy loading and mixed content warnings, but the exact relationship to the image loading problem remains unclear. Some technical details about browser behavior and extensions are noted, but no definitive conclusions are drawn.

Swamp Thing
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Images lower down in this page ...
https://johncarlosbaez.wordpress.com/2025/12/26/the-mathematics-of-tuning-systems/
... don't load in my browser. I have verified that their URLs are valid and I can view them in a new tab using Dev Tools.

How can I force the browser to load all images? Or to download as a "Webpage, complete" on disk with images in a folder? The latter option also does not show the lower-down images right now.

Ctrl+Shift+R doesn't help. Nor does it help to reaload with the "broken image" icon scrolled into view. Some search results state that this has to do with "lazy loading". But these images are not tagged load=lazy or similar.
 
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Try another web browser or reboot your system to see if the browser was in a wonky state,

On MacOS, I was able to export as PDF and save as a webarchive. The PDF file was viewable via the Preview app and the webarchive file via Safari.

I know I've seen cases where the webpage does a progressive type of thing, downloading only what the user sees in the moment. So if you scroll through it to the bottom, then everything is downloaded and generating a pdf works.
 
With Firefox and Chrome on Ubuntu, everything is fine on my end. The only "lazy" loading is with the images for the YouTube videos.

What browser do you have? Does the console in DevTools show errors that could be helpful? On Chrome, I do have this warning that may be relevant to your case:
the-mathematics-of-tuning-systems/:1 Mixed Content: The page at 'https://johncarlosbaez.wordpress.com/2025/12/26/the-mathematics-of-tuning-systems/' was loaded over HTTPS, but requested an insecure element 'http://math.ucr.edu/home/baez/azimuth_header.jpg'. This request was automatically upgraded to HTTPS, For more information see https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html
The same warning on Firefox refers to https://developer.mozilla.org/en-US/docs/Web/Security/Defenses/Mixed_content .

In Firefox, I also have a few of this warning for some images (https://s0.wp.com/images/blue_flower/bg.jpg and https://s0.wp.com/images/blue_flower/pagebar.jpg , for example):
A resource is blocked by OpaqueResponseBlocking, please check browser console for details.
And I also have content blocked by my extension µBlock Origin (looks like pixel images for tracking).

Finally, I also have a few of the following, which I'm not sure to which requests they refer:
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at data:text/plain;base64,Cg==. (Reason: CORS request not http). [Learn more]
 
I did get the mixed content warning, not the other two. Since it doesn't affect your rendering, it may not be related to my problem.

I will try on another computer later and other browsers as well.
 

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