It doesn't work on certain websites

I tried running it on claude.ai but it does not show. Same thing for YouTube. Same thing for Facebook. Same thing for discord. A lot of these modern apps just doesn't work on them. I thought the script was just not running on that website, but I was able to get my own unrelated bookmarklet to work. I think this means... The script does run on all the web pages. I still haven't tested a bookmarklet that would download content off another website. But it might just be blocked due to styling. It might be beneficial to set the Z index to like 9,001 or something.