Embedded Flickr photos not showing in Chrome

I’m seeing some unexpected page views:

Flickr photos embedded in the old way are not showing in Google Chrome on Mac. But they are showing in Safari on the same machine. I disabled all my Chrome extensions except Lastpass, but the photos are still not loading.

This is how they are embedded:
<img alt="wildwuchs" src="https://farm5.static.flickr.com/4013/4460275447_fda2a3a9f2.jpg" width="333" height="500" />

Any ideas why the photos are not showing in Chrome on Mac?

https://chiperoni.ch/wordpress/2014/09/embedded-flickr-photos-not-showing-in-chrome/