Panel_iframe website is not saving data

I’ve recently set up a Logitech Media Server and wanted to display it in my HA instance in the sidebar using the panel_iframe integration. It works pretty good so far, my only issue being that it doesn’t save the settings I change there like using a list view instead of grid view for the stuff. It always resets on reload

From what I’ve read, the theme that I use keeps these settings locally. Can I somehow allow the website to save its data? I’ve also tried the webpage card with a dedicated dashboard but it has the same result.

Fixed it by tweaking my Firefox settings. Apparently on Firefox it’s the “Enhanced Tracking Protection”. I disabled it for my local Home Assistant site and now the settings get saved