UPD

I tested the sieve on these external links and got a contradictory result. When you hover the cursor for the first time, the image appears for a split second and then immediately disappears, and the spinner turns "red". But if you try to hover the cursor several times, then the image finally appears and does not disappear anymore...

https://www.gazeta.press/politics/news/2026/04/30/28370143.shtml
https://www.gazeta.press/politics/news/2026/04/30/28370131.shtml
https://www.gazeta.press/science/news/2026/04/30/28366885.shtml
https://www.gazeta.press/social/news/2026/04/30/28369171.shtml