Website doesn't support onebox

I’d first contact the site administrators and ask if they’ll support the standard. It would make their site more useful all over the web, where developing a plugin for Discourse will make their site useful only on the few sites that choose to use the plugin.

You can post your request in Marketplace. Be sure to include a budget. It’s unclear just how difficult it’ll be. My wild guess is in the US$500-$1500 range.