Chome ext. no working

[BronxLens]

Hello there!

I was having great success with Save Image as Type but today on this page below, when I right-click on the image, I don't see Save Image as Type as an option:

https://www.christies.com/lot/lot-thomas-nozkowski-american-b-1944-untitled-5746443

Now, when I go to this page below (I extracted the address by inspecting the page), it does work fine:

https://www.christies.com/img/LotImages/2013/NYR/2013_NYR_02757_0015_000(thomas_nozkowski_untitled010444).jpg

Please advise.

Thank you.
JT