Change.org massively scaled images

Hi all

Does anyone know why Netsurf scales the images on www.change.org to
what seems like several thousand percent?

For example on the recent petition

https://www.change.org/p/new-era-should-not-become-the-end-of-an-era?utm_source=
action_alert&utm_medium=email&utm_campaign=192906

pixels in some of the images are about an inch square on the screen so
you have to scroll over large areas to read the text.

At least this is what I get on NS 3.3 Dev Cl#2419, RISC OS 5.21
Raspberry Pi, be interesting to see what happens on other platforms?

thanks,
--

Chris