Are you asking for an upgrade to the code so the plugin works, or are you asking for the feature of highlighting, etc, to be added to SC itself?
There are many, many web services that don’t work with SuttaCentral and I have long been frustrated by that. But I figured that Bhante must already be aware of this.
For the feature to be added to SC itself would be a big undertaking. You’d need to have an account and the data would likely have to be stored on SC’s servers. Browsers generally can’t store data other than cookies, and if it was put there, when you did a clearing of your browser cache it could all be deleted. (I could be wrong about these limitations, however)
I think it makes much more sense to manage these things on your own. Then you are sure they will not be deleted and you can fully organize things as you like, including notes, etc. Weava looks great except things seem to be stored on their servers. So when they go out of business, what happens to your data?
I suggest the open source note app Joplin. It even has a great browser plugin that lets you clip webpages into notes. I’ve been using it for about a year and it works really well. I’ve even been considering making a post about it here. Of course it’s different than Weava, but you own all of your data.
All that being said, it would be great if SC could be used by these services. Is this something you are working on/aware of Bhante @sujato?