I haven't experienced (on many browsers) what you've described.
Provide me some examples (links anb screenshots)
Here is an example: https://pic8.co/sh/YaIWfC.png
https://poal.co/s/PoliticalMemes/488400
Note that this happens from the main page... currently this post is on https://poal.co/all/new/7 - If I actualy go to the post itself and use the expando it opens up big like I would expect... I also just checked the same post from it's parent sub https://poal.co/s/PoliticalMemes/hot and on that page it looks fine as well...
This is maybe only an issue with /all/new/ ?
Edit: Here is the same post on https://poal.co/s/PoliticalMemes/hot where it looks fine: https://pic8.co/sh/qFLxi8.png
I can get that image to open and occupy the entire expando width in /all, in the sub or in the post itself.
There must be something wrong with your browser (maybe a 3rd party extension blocking js).
When i started writing this comment it was still happening even when I turned off all extensions... but I think you fixed it on the fly as I was investigating for you... now that come up full width.
(post is archived)