Help with ad blocking rules in Web Viewer

Can you help me to get my ad blocking rules working in web viewer?

The instructions in the core plugin say “One ad block list URL per line.” and already has:

https://easylist.to/easylist/easylist.txt
https://easylist.to/easylist/easyprivacy.txt

I created a txt file with my ad block list, saved it to my media library, and inserted the url onto a new line in the field. I tried it both after and before the easylist files. I have tried reloading pages, clearing cache, closing and reopening the vault, and exiting and restarting Obsidian. It does not appear to have any effect.

Modeled on the easylist files, my block list is:

[Adblock Plus 2.0]
! Version: 202505071844
||xxx.org^$script
||*.xxx.org^$script

That is, it is intended to stop javascript from running on pages in that domain. I have stopped Javascript on this domain in my arc browser through page settings, and it works perfectly. I want to do the same thing in my Obsidian web viewer.