Is there a library for better <a href>'s, like social sharing cards?

It seems to need a backend to fetch metadata so as to bypass CORS...

I can try to create my own (in Now.sh), but it wouldn't support multiple media types by default.

Also, this should be done in dev.to to enhance <a href>s (currently, only handful stuffs are supported, like GitHub and Dev.to posts).

Interestingly, Dev.to seems to generate og:image when I post in Discord.