Changing the orientation of my phone from portrait to landscape while on the site somewhat solved this.

For me it shows the top half of the Hubble version, but not the bottom.

That's the extent of the Hubble original

https://hubblesite.org/contents/media/images/2008/34/2405-Im...

That makes sense then. I have two suggestions if the person who made this is reading: maybe fill out the hubble image with black so it can line up with the JWST image, might make the interface less janky? Or if someone knows of a larger imagine from another telescope(Spitzer?) That could be a more interesting comparison for that particular observation.