Widgets Not Supported In Some Sites (Security Issues)

I tried using the widget on Anilist, and noticed it wasn't updating. I reached out to a mod and was informed due to the widget using CSS/JS it is unsupported to due security concerns. Was noted that Markdown was supported there. Would be cool to somehow have some option or something maybe. I know Anilist can't be the only site with this issue, and it's actually frustrating :/

Hotlink To Thread I Made With Mod About Widgets on Anilist (Picture below also)

As an extra feature: It would be cool to have the option for "Recently updated" in widgets, where I can have only a single show listed, and if I watch an episode it would say "Recently watched this episode XXXX" and then if I watch another episode on a different show it would change the widget to say "Recently watches this episode of XXXX"