First, This Web Viewer Core plugin should be a download on demand.
Let’s keep Obsidian local first.
A core integration with the www is OK, but requires security standards which require a frequent maintenance. Therefore I am sorry to say that I won’t trust this plugin and wont use it. Let me explain further why.
I bet, everyone knows how frequent modern web browsers launch updates nowadays… those updates aren’t just for fun, eg. To add new features but to guarantee a safe web browsing, foremost. How I see it, the maker of Obsidian don’t have enough manpower to provide a constant maintenance for a browser (plugin). Since information is the new thing nowadays, this Web Viewer adds just an useless vulnerability vector. Obsidian should stay true to their primary vision as a pkm tool and not do something else.
Second, for those who want to install this core plugin, I’d suggest a password to unlock the activation of the Web Viewer Core plugin.