There is no XML in the data served by Discourse.
The URL of this image is https://cdn.forum.snap.berkeley.edu/optimized/3X/6/6/666a9f1e0ee66a1115051021e40784a2b4818ec9_2_517x36.png
It seems that image is "optimized" i.e. modified by Disco or CDN.
Other images are served from https://cdn.forum.snap.berkeley.edu/original/... URL.
